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# Threat Brief: Multiple Vulnerabilities Including Zero-Day Remote Unauthenticated API Access -- CVE-2023-35078 -- in Ivanti Endpoint Manager Mobile (Updated)

![Clock Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-clock.svg) 8 min read  
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  Published:July 28, 2023

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  * [API attacks](https://unit42.paloaltonetworks.com/tag/api-attacks/)
  * [CVE-2023-32560](https://unit42.paloaltonetworks.com/tag/cve-2023-32560/)
  * [CVE-2023-35078](https://unit42.paloaltonetworks.com/tag/cve-2023-35078/)
  * [CVE-2023-35081](https://unit42.paloaltonetworks.com/tag/cve-2023-35081/)
  * [CVE-2023-35082](https://unit42.paloaltonetworks.com/tag/cve-2023-35082/)
  * [CVE-2023-38035](https://unit42.paloaltonetworks.com/tag/cve-2023-38035/)
  * [Ivanti](https://unit42.paloaltonetworks.com/tag/ivanti/)
  * [Zero-day](https://unit42.paloaltonetworks.com/tag/zero-day/)

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## Executive Summary

**Update:** As of August 23, over the last three weeks this incident has developed with three additional vulnerabilities discovered in Ivanti products. The first in MobileIron Core (CVE-2023-35082; the main topic of this threat brief post when first published in July), a second vulnerability discovered in the Ivanti Avalanche product (CVE-2023-32560), and the third in the Ivanti Sentry product (CVE-2023-38035).

On July 24, 2023, Ivanti Endpoint Manager Mobile (EPMM), previously known as MobileIron Core, publicly disclosed details about an unauthenticated API access zero-day vulnerability. [CVE-2023-35078](https://forums.ivanti.com/s/article/CVE-2023-35078-Remote-unauthenticated-API-access-vulnerability?language=en_US) affects versions **11.10, 11.9 and 11.8,** but older versions are also at risk of possible exploitation.

At the time of writing, the only confirmed victims have been [Norwegian government agencies](https://www.dss.dep.no/aktuelle-saker/departementer-utsatt-for-dataangrep/). They confirmed their government ministries had been targeted in a cyberattack exploiting this vulnerability, but given the number of potentially vulnerable servers on the internet running this software, it's highly likely that other organizations will or already have fallen victim. Open source reporting indicates that these attacks most likely occurred prior to Ivanti knowing about the vulnerability.

As of July 24, data from our active attack surface management solution, Cortex Xpanse discovered over **5,500** Ivanti Endpoint Manager Mobile servers, spanning multiple versions, were publicly exposed on the internet. The highest number of these exposures were found in Germany, the United States and the United Kingdom.

The regional statistics from this scanning indicate over 80% of these servers reside in western countries and span multiple industry sectors including the following among many others:

* Local and national government departments
* Healthcare organizations
* Law firms and other legal entities
* Universities
* Banks and financial institutions
* Charities
* Retail

**Update:** As of August 23, Unit 42 Xpanse data indicates a fairly consistent total number of Ivanti MobileIron servers on the internet compared to the same analysis three weeks ago. Also noted are hundreds of IP addresses previously showing older, vulnerable versions now with updated versions that should mitigate the known vulnerabilities. However, we also note many internet IP addresses today still serving Ivanti MobileIron and related services reporting potentially vulnerable, not to mention unsupported, versions.

This vulnerability allows unauthenticated users full API access through specific API endpoints. According to the [CISA advisory](https://www.cisa.gov/news-events/alerts/2023/07/24/ivanti-releases-security-updates-endpoint-manager-mobile-epmm-cve-2023-35078), with this access malicious actors can extract personally identifiable information (PII) and perform administrative actions, like creating new accounts and making configuration changes, without needing any credentials.

Given the global reach of this incident, and the fact that the vulnerability has already been exploited in the wild, organizations should investigate exposures on their network, and remediate as quickly as possible, using the Ivanti-provided product upgrades.

Since the discovery of the Critical vulnerability CVE-2023-35078, another vulnerability with a High CVSS classification has also been reported within the Ivanti Endpoint Manager Mobile application. [CVE-2023-35081](https://www.ivanti.com/blog/cve-2023-35081-new-ivanti-epmm-vulnerability) is a remote file write vulnerability that requires an authenticated administrator to write files to the compromised server, which could include additional payloads providing further access.

**Update:** As of August 23, in the past three weeks three additional vulnerabilities in Ivanti products have been announced, as follows:

1. [CVE-2023-35082](https://forums.ivanti.com/s/article/CVE-2023-35082-Remote-Unauthenticated-API-Access-Vulnerability-in-MobileIron-Core-11-2-and-older?language=en_US) allows an attacker remote, unauthenticated API access in MobileIron Core 11.2 and older. This is similar to the original vulnerability in the set -- CVE-2023-35078 -- but covers some of the older versions of the product.
2. [CVE-2023-32560](https://forums.ivanti.com/s/article/Avalanche-Vulnerabilities-Addressed-in-6-4-1?language=en_US) allows an attacker to remotely exploit the Ivanti Avalanche software without authentication which could lead to execution of arbitrary code on the vulnerable system.
3. [CVE-2023-38035](https://cve-2023-38035) is currently being exploited in the wild allowing attackers, via an API authentication bypass vulnerability in the Ivanti Sentry product, to gain access to sensitive admin portal configuration APIs.

Unit 42 recommends that users of the affected software upgrade to the latest versions that include fixes for the vulnerability. It's especially important to review your network topology to ensure that any public-facing Ivanti Endpoint Manager Mobile services are up-to-date with the latest patch.

For those who can't upgrade to fixed versions of the software, we also recommend taking precautionary measures to control access to vulnerable servers, and considering restricting access to the public until they can be patched.

[Cortex Xpanse](https://www.paloaltonetworks.com/cortex/cortex-xpanse) customers can identify external facing instances of the application through the "**Insecure Ivanti Endpoint Manager Mobile (MobileIron Core)"** attack surface rule.

The timeline below provides an overview of the situation to-date.

|-------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------|
| **Event**                                                                                                                           | **Public announcement (discovery or disclosure)** | **Details**                                                                                                                                          |
| [CVE-2023-35078](https://forums.ivanti.com/s/article/CVE-2023-35078-Remote-unauthenticated-API-access-vulnerability?language=en_US) | July 24                                           | Allows unauthorized users to access restricted functionality or resources of the application without proper authentication                           |
| [CVE-2023-35081](https://forums.ivanti.com/s/article/CVE-2023-35081-Arbitrary-File-Write?language=en_US)                            | July 28                                           | Attacker can write arbitrary files onto the appliance                                                                                                |
| [CVE-2023-35082](https://unit42.paloaltonetworks.com/threat-brief-citrix-cve-2023-3519/)                                            | August 2                                          | Unauthorized users could access restricted functionality or resources of application without proper authentication                                   |
| [CVE-2023-32560](https://forums.ivanti.com/s/article/Avalanche-Vulnerabilities-Addressed-in-6-4-1?language=en_US)                   | August 16                                         | Unauthenticated stack-based buffer overflows                                                                                                         |
| [CVE-2023-38035](https://www.ivanti.com/blog/cve-2023-38035-vulnerability-affecting-ivanti-sentry)                                  | August 21                                         | Enables an unauthenticated actor to access some sensitive APIs that are used to configure Ivanti Sentry on the administrator portal (commonly, MICS) |

*Table 1. Timeline of discovery of CVEs. Source of details column: Ivanti.*

| **Vulnerabilities Discussed** | [**CVE-2023-35078**](https://unit42.paloaltonetworks.com/tag/cve-2023-35078/), [**CVE-2023-35081**](https://unit42.paloaltonetworks.com/tag/cve-2023-35081/), [**CVE-2023-35082**](https://unit42.paloaltonetworks.com/tag/cve-2023-35082/), **[CVE-2023-32560](https://unit42.paloaltonetworks.com/tag/cve-2023-32560/)** , **[CVE-2023-38035](https://unit42.paloaltonetworks.com/tag/cve-2023-38035/)** |
|-------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

## Details of the Vulnerability: CVE-2023-35078

Of the [5,500 Ivanti Endpoint Manager Mobile servers](https://www.paloaltonetworks.com/blog/security-operations/dont-let-your-ivanti-exposures-go-unpatched/) discovered through Palo Alto Networks Cortex Xpanse data, Figure 1 below shows a subset of those servers that we were able to obtain a product version for, and the count of said version. The Ivanti-supported version numbers are mentioned above. However, as you can see in the figure below, there are many other, older, unsupported versions still publicly exposed on the internet.

Just under a quarter of the servers we could obtain version information for were supported and, despite the partial information, that pattern is quite concerning. This is an important point to make: Software, especially when it's internet-facing, should be protected and kept up to date.
![Image 1 is a column chart of the number of affected hosts captured by Unit 42 research where the version was known. The highest affected is version 11.1 with 1,372.](https://unit42.paloaltonetworks.com/wp-content/uploads/2023/07/chart-3.png) Figure 1. Chart showing the number of hosts running Ivanti Endpoint Manager Mobile (MobileIron Core), by their versions (where the version was obtainable).

The vulnerability has received a CVSS v.3.0 base score of 10.0, the highest rating possible, and a severity of Critical.

Given the ease of exploitation to the [internet-facing application's](https://attack.mitre.org/techniques/T1190/) API, provided as default by each organization running the affected software, there is no so-called proof of concept code required to exploit the vulnerability. It is, unfortunately, as simple as interacting with the system's API using commands (many of which are documented and publically available) to perform various actions within the victim's environment. As [described by CISA](https://www.cisa.gov/news-events/alerts/2023/07/24/ivanti-releases-security-updates-endpoint-manager-mobile-epmm-cve-2023-35078), such commands can extract PII and perform administrative actions, like creating new accounts and making configuration changes, without needing any credentials.

## Details of the Vulnerability: CVE-2023-35081

On July 28, 2023, another vulnerability with a High CVSS classification was reported within the Ivanti Endpoint Manager Mobile application. [CVE-2023-35081](https://www.ivanti.com/blog/cve-2023-35081-new-ivanti-epmm-vulnerability) is a remote file write vulnerability that requires an authenticated administrator to write files to the compromised server, which could include additional payloads providing further access.

According to Ivanti, there are reports of victims impacted by the new vulnerability used in conjunction with the original vulnerability. The original provides unauthenticated access while the second provides additional capabilities.

This news is somewhat reminiscent of the recent [MOVEit vulnerability](https://nvd.nist.gov/vuln/detail/CVE-2023-34362) where, in the weeks following the discovery, both the vendor and security researchers had uncovered additional vulnerabilities perhaps due to the focus drawn by the initial findings.

## Current Scope of the Attack: CVE-2023-35078

As Ivanti's public notification about CVE-2023-35078 in their [forums](https://forums.ivanti.com/s/article/CVE-2023-35078-Remote-unauthenticated-API-access-vulnerability?language=en_US) states, "If exploited, this vulnerability enables an unauthorized, remote (internet-facing) actor to potentially access users' personally identifiable information and make limited changes to the server." Furthermore, Ivanti stated they were aware of a very limited number of customers that have been impacted.

Our research shows that a total of 85 countries hosted the 5,500 Ivanti Endpoint Manager Mobile servers on the internet. A dozen or so countries had a single server present at the time of our scan, but many countries had dozens each, if not hundreds. Germany and the United States both had over 1,000 servers.

Figure 2 shows the breakdown of the top 10 countries hosting the highest number of servers.
![Image 2 is a chart showing the affected MobileIron Core servers affected, by country. The top country is Germany at 42 percent. Second is the United States at 27 percent, and third is the United Kingdom at 6.5 percent.](https://unit42.paloaltonetworks.com/wp-content/uploads/2023/07/chart-4.png) Figure 2. Chart showing the top 10 countries hosting the highest number of MobileIron Core servers. (Percentages shown in chart cover only the countries shown.)

So far, the only publicly confirmed victims are Norwegian authorities and their government ministries. The attack against them was confirmed to be a zero day and later confirmed to be a vulnerability in Ivantis software. However, it's highly likely that other organizations will have fallen victim as well, given the number of potentially vulnerable servers on the internet running this software.

## Interim Guidance

Ivanti recommends for users of their software to upgrade to the latest versions that include fixes for the vulnerability.

Unit 42 recommends reviewing your network topology to ensure that any public-facing Ivanti Endpoint Manager Mobile services are up-to-date with the latest patch. If not, consider restricting access to the public until they can be patched.

## Conclusion

Based on the amount of publicly available information, the ease of use and the extreme effectiveness of the exploit for CVE-2023-35078, Palo Alto Networks highly recommends following Ivanti's guidance to protect your organization. Palo Alto Networks and Unit 42 will continue to monitor the situation for updated information and provide evidence of more widespread exploitation, if and when that occurs.

Network-based, and especially [internet-facing](https://attack.mitre.org/techniques/T1190/), services are popular targets for threat actors to exploit and leverage to gain access into an environment. This has happened in the past with MobileIron, as documented by the [UK NCSC](https://www.ncsc.gov.uk/news/alert-multiple-actors-attempt-exploit-mobileiron-vulnerability) describing nation-state actors using [CVE-2020-15505](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15505) to compromise the networks of UK organizations.

The recent news of another vulnerability --- [CVE-2023-35081](https://www.ivanti.com/blog/cve-2023-35081-new-ivanti-epmm-vulnerability) --- in the Ivanti Endpoint Manager Mobile application, providing a remote file write capability to an authenticated administrator came quickly after the original vulnerability disclosure. As was seen with the [MOVEit vulnerability](https://nvd.nist.gov/vuln/detail/CVE-2023-34362) over the last couple of months, once a significant vulnerability is identified within a piece of software, attention is drawn for security researchers, threat actors and the software vendor in an attempt to uncover additional issues for different motivations.

We will update this threat brief as more relevant information becomes available.

## Palo Alto Networks Product Protections for CVE-2023-35078

If you think you may have been compromised or have an urgent matter, get in touch with the [Unit 42 Incident Response team](https://start.paloaltonetworks.com/contact-unit42.html) or call:

* North America Toll-Free: 866.486.4842 (866.4.UNIT42)
* EMEA: +31.20.299.3130
* APAC: +65.6983.8730
* Japan: +81.50.1790.0200

### Cortex Xpanse

[Cortex Xpanse](https://www.paloaltonetworks.com/cortex/cortex-xpanse) customers can identify external facing instances of the application through the "**Insecure Ivanti Endpoint Manager Mobile (MobileIron Core)"** attack surface rule. The rule is available to all customers with a default state of "On."
![Image 3 is a screenshot of the Cortex Xpanse interface. On the left is a menu. The policies and rules tab has been selected, and from that menu attack surface rules has been selected. The attack surface rules include a table that lists status, build ID, severity, a description, the rule name, and when it was modified. This all lists the information for CVE-2023-25078.](https://unit42.paloaltonetworks.com/wp-content/uploads/2023/07/word-image-129494-3.png) Figure 3. A screenshot of the Cortex Xpanse interface, showing the Insecure Ivanti Endpoint Manager/MobileIron rule enabled.

Within Cortex Xpanse's Threat Response Center, organizations can also find curated threat intel summaries, exploit consequences, previous exploit activity and links to other sources for additional information. This allows you to see how risk is distributed across your organization and build a remediation plan based on the guidance provided. Cortex Xpanse identifies service owners automatically, so organizations can easily assign a ticket to the right person.
![Image 4 is a screenshot of the Cortex Xpanse interface that lists the threat summary for CVE-2023-35078, including remediation and mediation, suggestions, and the exploit consequences. It also has a table of related CVEs.](https://unit42.paloaltonetworks.com/wp-content/uploads/2023/07/word-image-129494-4.png) Figure 4. A screenshot of the Cortex Xpanse interface, showing the Threat Summary, including Remediation and Mitigation Suggestions.

### Additional References

* [Don't Let Your Ivanti Exposures Go Unpatched](https://www.paloaltonetworks.com/blog/security-operations/dont-let-your-ivanti-exposures-go-unpatched/) Blog, Palo Alto Networks
* [Nulldagssårbarhet i Ivanti Endpoint Manager (MobileIron Core)](https://nsm-no.translate.goog/aktuelt/nulldagssarbarhet-i-ivanti-endpoint-manager-mobileiron-core?_x_tr_sl=no&_x_tr_tl=en&_x_tr_hl=no&_x_tr_pto=wapp) -- NSM
* [MobileIrony backdoor allows complete takeover of mobile security product and endpoints](https://doublepulsar.com/mobileirony-backdoor-allows-complete-takeover-of-mobile-security-product-and-endpoints-559733d612e1) -- Kevin Beaumont, DoublePulsar
* [Norwegian government IT systems hacked using zero-day flaw](https://www.bleepingcomputer.com/news/security/norwegian-government-it-systems-hacked-using-zero-day-flaw/) -- Bleeping Computer
* [Ivanti patches MobileIron zero-day bug exploited in attacks](https://www.bleepingcomputer.com/news/security/ivanti-patches-mobileiron-zero-day-bug-exploited-in-attacks/) -- Bleeping Computer
* [Ivanti Releases Security Updates for Endpoint Manager Mobile (EPMM) CVE-2023-35078](https://www.cisa.gov/news-events/alerts/2023/07/24/ivanti-releases-security-updates-endpoint-manager-mobile-epmm-cve-2023-35078) -- CISA
* [Exploit Public-Facing Application, Technique T1190 - Enterprise](https://attack.mitre.org/techniques/T1190/) -- MITRE ATT\&CK

Previous vulnerability:

* [Social Media: how to use it safely](https://www.ncsc.gov.uk/news/alert-multiple-actors-attempt-exploit-mobileiron-vulnerability) -- NCSC
* [Top 30 Critical Security Vulnerabilities Most Exploited by Hackers](https://thehackernews.com/2021/07/top-30-critical-security.html) -- The Hacker News

*Updated August 23, 2023, at 11:21 a.m. PT to include three new CVEs affecting Ivanti and a timeline of their discovery.*
Back to top

### Tags

* [API attacks](https://unit42.paloaltonetworks.com/tag/api-attacks/ "API attacks")
* [CVE-2023-32560](https://unit42.paloaltonetworks.com/tag/cve-2023-32560/ "CVE-2023-32560")
* [CVE-2023-35078](https://unit42.paloaltonetworks.com/tag/cve-2023-35078/ "CVE-2023-35078")
* [CVE-2023-35081](https://unit42.paloaltonetworks.com/tag/cve-2023-35081/ "CVE-2023-35081")
* [CVE-2023-35082](https://unit42.paloaltonetworks.com/tag/cve-2023-35082/ "CVE-2023-35082")
* [CVE-2023-38035](https://unit42.paloaltonetworks.com/tag/cve-2023-38035/ "CVE-2023-38035")
* [Ivanti](https://unit42.paloaltonetworks.com/tag/ivanti/ "Ivanti")
* [Zero-day](https://unit42.paloaltonetworks.com/tag/zero-day/ "zero-day")  
  [Threat Research Center](https://unit42.paloaltonetworks.com "Threat Research") [Next: Threat Brief: RCE Vulnerability CVE-2023-3519 on Customer-Managed Citrix Servers](https://unit42.paloaltonetworks.com/threat-brief-citrix-cve-2023-3519/ "Threat Brief: RCE Vulnerability CVE-2023-3519 on Customer-Managed Citrix Servers")

### Table of Contents

* 

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## Related Vulnerabilities Resources

![Pictorial representation of a group of people interacting with a dynamic 3D holographic display of colorful, undulating data waves on a table.](https://unit42.paloaltonetworks.com/wp-content/uploads/2025/09/11_Myth-Busting_Overview_1920x900-786x368.jpg)  
[![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2025/08/Insights-icon-white.svg)Insights](https://unit42.paloaltonetworks.com/category/insights/) August 4, 2026 [#### The Frontier AI Vulnerability Burst: Industrializing Autonomous Zero-Day Discovery in Open-Source Software](https://unit42.paloaltonetworks.com/frontier-ai-vulnerability-burst/)

* [AI](https://unit42.paloaltonetworks.com/tag/ai/ "AI")

* [Frontier AI](https://unit42.paloaltonetworks.com/tag/frontier-ai/ "Frontier AI")

* [Vulnerability Exploitation](https://unit42.paloaltonetworks.com/tag/vulnerability-exploitation/ "Vulnerability Exploitation")  
  [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/frontier-ai-vulnerability-burst/ "The Frontier AI Vulnerability Burst: Industrializing Autonomous Zero-Day Discovery in Open-Source Software")  
  ![Pictorial representation of AI-enabled autonomous cyberattacks. A digital illustration depicting abstract, interconnected data streams in vibrant colors on a dark blue background](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/07/AdobeStock_992950050-3-782x440.jpeg)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/06/icon-threat-research.svg)Threat Research](https://unit42.paloaltonetworks.com/category/threat-research/) July 30, 2026 [#### Chinese-Speaking Threat Actor Harnesses AI Models for Autonomous Cyberattacks](https://unit42.paloaltonetworks.com/autonomous-ai-cyber-attack-campaign/)

* [ChatGPT](https://unit42.paloaltonetworks.com/tag/chatgpt/ "ChatGPT")

* [Claude code](https://unit42.paloaltonetworks.com/tag/claude-code/ "Claude code")

* [CVEs](https://unit42.paloaltonetworks.com/tag/cves/ "CVEs")  
  [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/autonomous-ai-cyber-attack-campaign/ "Chinese-Speaking Threat Actor Harnesses AI Models for Autonomous Cyberattacks")  
  ![Pictorial representation of three zero-day vulnerabilities in Siemens ROX II OT switches. Digital illustration of a global network featuring interconnected lines and nodes over a map of the world, highlighted with neon lights and digital elements.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/07/03_Vulnerabilities_1920x900-786x368.jpg)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/06/icon-threat-research.svg)Threat Research](https://unit42.paloaltonetworks.com/category/threat-research/) July 17, 2026 [#### Three Steps to the Terminal: A Siemens ROX II Zero-Day Trilogy](https://unit42.paloaltonetworks.com/siemens-rox-ii-zero-day-vulnerabilities/)

* [Command injection](https://unit42.paloaltonetworks.com/tag/command-injection/ "Command injection")

* [CVE-2025-40947](https://unit42.paloaltonetworks.com/tag/cve-2025-40947/ "CVE-2025-40947")

* [CVE-2025-40948](https://unit42.paloaltonetworks.com/tag/cve-2025-40948/ "CVE-2025-40948")  
  [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/siemens-rox-ii-zero-day-vulnerabilities/ "Three Steps to the Terminal: A Siemens ROX II Zero-Day Trilogy")  
  ![Pictorial representation of PAN-OS CVE-2026-0257. A vibrant city skyline at night, with tall skyscrapers and glowing digital beams extending into the sky, suggesting advanced technology and connectivity.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/06/07_Vulnerabilities_1920x900-786x368.jpg)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/07/top-threats.svg)High Profile Threats](https://unit42.paloaltonetworks.com/category/top-cyberthreats/) June 9, 2026 [#### Threat Brief: Active Exploitation of PAN-OS CVE-2026-0257](https://unit42.paloaltonetworks.com/active-exploitation-of-pan-os-cve-2026-0257/)

* [CVE-2026-0257](https://unit42.paloaltonetworks.com/tag/cve-2026-0257/ "CVE-2026-0257")

* [Vulnerability](https://unit42.paloaltonetworks.com/tag/vulnerability/ "vulnerability")  
  [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/active-exploitation-of-pan-os-cve-2026-0257/ "Threat Brief: Active Exploitation of PAN-OS CVE-2026-0257")  
  ![Pictorial representation of CVE-2026-30300. Digital illustration of a map of North America with interconnected glowing lines and dots symbolizing network connections across the continent.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/05/06_Vulnerabilities_1920x900-3-1-786x368.jpg)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/07/top-threats.svg)High Profile Threats](https://unit42.paloaltonetworks.com/category/top-cyberthreats/) May 6, 2026 [#### Threat Brief: Exploitation of PAN-OS Captive Portal Zero-Day for Unauthenticated Remote Code Execution](https://unit42.paloaltonetworks.com/captive-portal-zero-day/)

* [CVE-2026-0300](https://unit42.paloaltonetworks.com/tag/cve-2026-0300/ "CVE-2026-0300")

* [EarthWorm](https://unit42.paloaltonetworks.com/tag/earthworm/ "EarthWorm")

* [PAN-OS](https://unit42.paloaltonetworks.com/tag/pan-os/ "PAN-OS")  
  [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/captive-portal-zero-day/ "Threat Brief: Exploitation of PAN-OS Captive Portal Zero-Day for Unauthenticated Remote Code Execution")  
  ![Pictorial representation of a severe Linux vulnerability. Close-up of a woman wearing glasses and focusing intently on a computer screen.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/05/05_Vulnerabilities_1920x900-2-1-786x368.jpg)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/07/top-threats.svg)High Profile Threats](https://unit42.paloaltonetworks.com/category/top-cyberthreats/) May 5, 2026 [#### Copy Fail: What You Need to Know About the Most Severe Linux Threat in Years](https://unit42.paloaltonetworks.com/cve-2026-31431-copy-fail/)

* [Containers](https://unit42.paloaltonetworks.com/tag/containers/ "Containers")

* [CVE-2026-31431](https://unit42.paloaltonetworks.com/tag/cve-2026-31431/ "CVE-2026-31431")

* [Kubernetes](https://unit42.paloaltonetworks.com/tag/kubernetes/ "Kubernetes")  
  [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/cve-2026-31431-copy-fail/ "Copy Fail: What You Need to Know About the Most Severe Linux Threat in Years")  
  ![Pictorial representation of CVE-2023-33538. Abstract image of a glowing red Wi-Fi symbol on a circuit board, with intricate patterns and a futuristic appearance.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/04/04_Vulnerabilities_1920x900-786x368.jpg)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/06/icon-threat-research.svg)Threat Research](https://unit42.paloaltonetworks.com/category/threat-research/) April 16, 2026 [#### A Deep Dive Into Attempted Exploitation of CVE-2023-33538](https://unit42.paloaltonetworks.com/exploitation-of-cve-2023-33538/)

* [Botnet](https://unit42.paloaltonetworks.com/tag/botnet/ "botnet")

* [Command injection](https://unit42.paloaltonetworks.com/tag/command-injection/ "Command injection")

* [CVE-2023-33538](https://unit42.paloaltonetworks.com/tag/cve-2023-33538/ "CVE-2023-33538")  
  [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/exploitation-of-cve-2023-33538/ "A Deep Dive Into Attempted Exploitation of CVE-2023-33538")  
  ![Pictorial representation of BeyondTrust vulnerability CVE-2026-1731. Digital art depicting a stylized mountain range with vibrant blue and red hues. The peaks are accentuated by glowing particles and an abstract, starry backdrop, creating a futuristic landscape.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/02/14_Overview_1920x900-786x368.jpg)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/07/top-threats.svg)High Profile Threats](https://unit42.paloaltonetworks.com/category/top-cyberthreats/) February 19, 2026 [#### VShell and SparkRAT Observed in Exploitation of BeyondTrust Critical Vulnerability (CVE-2026-1731)](https://unit42.paloaltonetworks.com/beyondtrust-cve-2026-1731/)

* [Bash](https://unit42.paloaltonetworks.com/tag/bash/ "bash")

* [CVE-2026-1731](https://unit42.paloaltonetworks.com/tag/cve-2026-1731/ "CVE-2026-1731")

* [PowerShell](https://unit42.paloaltonetworks.com/tag/powershell/ "PowerShell")  
  [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/beyondtrust-cve-2026-1731/ "VShell and SparkRAT Observed in Exploitation of BeyondTrust Critical Vulnerability (CVE-2026-1731)")  
  ![](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/02/AdobeStock_1020436911-786x440.jpeg)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/07/top-threats.svg)High Profile Threats](https://unit42.paloaltonetworks.com/category/top-cyberthreats/) February 17, 2026 [#### Critical Vulnerabilities in Ivanti EPMM Exploited](https://unit42.paloaltonetworks.com/ivanti-cve-2026-1281-cve-2026-1340/)

* [CVE-2026-1281](https://unit42.paloaltonetworks.com/tag/cve-2026-1281/ "CVE-2026-1281")

* [CVE-2026-1340](https://unit42.paloaltonetworks.com/tag/cve-2026-1340/ "CVE-2026-1340")

* [Ivanti](https://unit42.paloaltonetworks.com/tag/ivanti/ "Ivanti")  
  [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/ivanti-cve-2026-1281-cve-2026-1340/ "Critical Vulnerabilities in Ivanti EPMM Exploited")  
  ![Pictorial representation of CVE-2025-0921. Digital illustration of a map of North America with interconnected glowing lines and dots symbolizing network connections across the continent.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/01/06_Vulnerabilities_1920x900-2-1-786x368.jpg)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/06/icon-threat-research.svg)Threat Research](https://unit42.paloaltonetworks.com/category/threat-research/) January 30, 2026 [#### Privileged File System Vulnerability Present in a SCADA System](https://unit42.paloaltonetworks.com/iconics-suite-cve-2025-0921/)

* [CVE-2025-0921](https://unit42.paloaltonetworks.com/tag/cve-2025-0921/ "CVE-2025-0921")

* [Privilege escalation](https://unit42.paloaltonetworks.com/tag/privilege-escalation/ "privilege escalation")

* [SCADA](https://unit42.paloaltonetworks.com/tag/scada/ "SCADA")  
  [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/iconics-suite-cve-2025-0921/ "Privileged File System Vulnerability Present in a SCADA System")

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