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# Threat Brief: MongoDB Vulnerability (CVE-2025-14847)

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  Published:January 13, 2026

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## Executive Summary

On Dec. 19, 2025, MongoDB publicly disclosed [MongoBleed](https://www.mongodb.com/company/blog/news/mongodb-server-security-update-december-2025), a security vulnerability ([CVE-2025-14847](https://www.cve.org/CVERecord?id=CVE-2025-14847)) that allows unauthenticated attackers to leak sensitive heap memory by exploiting a trust issue in how MongoDB Server handles zlib-compressed network messages. This flaw occurs prior to authentication, meaning an attacker only needs network access to the database's default port to trigger it.

Key details of the threat are summarized below:

* **Vulnerability:** [CVE-2025-14847](https://www.cve.org/CVERecord?id=CVE-2025-14847) is a critical, unauthenticated memory disclosure vulnerability in MongoDB Server's handling of zlib-compressed messages (CVSS 8.7).
* \*\*Impact:\*\*This memory can contain sensitive data such as cleartext credentials, API keys, session tokens and personally identifiable information (PII).
* **Status:** Confirmed active exploitation in the wild. A public proof-of-concept (PoC) exploit is available. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added this vulnerability to the Known Exploited Vulnerabilities (KEV) Catalog [on Dec. 29, 2025](https://www.cisa.gov/news-events/alerts/2025/12/29/cisa-adds-one-known-exploited-vulnerability-catalog), based on evidence of active exploitation.

Cortex Xpanse identified approximately 146,000 instances of MongoDB exposed to the internet.

Palo Alto Networks customers are better protected from activity related to CVE-2025-14847 through the following products and services:

* [Next-Generation Firewall](https://docs.paloaltonetworks.com/ngfw) with the [Advanced Threat Prevention](https://docs.paloaltonetworks.com/advanced-threat-prevention/administration)
* [Cortex XDR](https://docs-cortex.paloaltonetworks.com/p/XDR) and [XSIAM](https://docs-cortex.paloaltonetworks.com/p/XSIAM) can help protect against post-exploitation activities using the multi-layer protection approach
* [Cortex Cloud](https://www.paloaltonetworks.com/cortex/cloud/demo?utm_source=google-jg-amer-prisma_cloud-scpc-cstp&utm_medium=paid_search&utm_campaign=google-prisma_cloud-cloud_st_portfolio-amer-multi-lead_gen-en-brand&utm_content=701Ki000000LqJaIAK&utm_term=cortex%20cloud&cq_plac=&cq_net=g&gad_source=1&gad_campaignid=22212528892&gbraid=0AAAAADHVeKllQ-_yV2xRPxFm_qsmQQqso&gclid=Cj0KCQiA1JLLBhCDARIsAAVfy7iVuJVJtyKgsK4L7UP0AcRhOQV3LDGHeeQ0FGJwUx84T4bNphe_55UaAqPQEALw_wcB) can help [detect](https://www.paloaltonetworks.com/cortex/cloud/vulnerability-management) cloud-hosted resources vulnerable to CVE-2025-14847
* [Cortex Xpanse](https://www.paloaltonetworks.com/cortex/cortex-xpanse) can help identify exposed MongoDB devices on the public internet and escalate these findings to defenders

The [Unit 42 Incident Response team](https://start.paloaltonetworks.com/contact-unit42.html) can also be engaged to help with a compromise or to provide a proactive assessment to lower your risk.

| **Vulnerabilities Discussed** | [**CVE-2025-14847**](https://unit42.paloaltonetworks.com/tag/cve-2025-14847/) |
|-------------------------------|-------------------------------------------------------------------------------|

## Details of CVE-2025-14847

The MongoBleed vulnerability originates in the way MongoDB processes zlib-compressed wire-protocol messages, a feature that is enabled by default. Communication is handled via an [OP\_COMPRESSED](https://www.mongodb.com/docs/manual/reference/mongodb-wire-protocol/#op_compressed) header, which wraps the original message payload and includes a field specifying the expected size of the uncompressed data.

The execution of the attack mechanism occurs in the following manner:

* An unauthenticated attacker sends a specially crafted, compressed message to a vulnerable MongoDB server.
* The attacker manipulates the uncompressedSize field within the OP\_COMPRESSED header, setting it to a value significantly larger than the actual compressed payload.
* The server fails to validate this value and allocates an oversized memory buffer based on the attacker-specified size. This buffer is populated with uninitialized heap memory, remnants of previously processed data.
* The leak is further amplified by MongoDB's error-handling logic. When the attacker's malformed [BSON](https://www.mongodb.com/docs/manual/reference/bson-types/) object is sent without a null terminator, the server attempts to parse memory until it encounters a null terminator. When parsing ultimately fails, the server returns an error response that includes *both the original malicious message and the contents of the leaked heap memory*.

It's important to note that MongoDB automatically applied the patch to managed MongoDB Atlas customers, meaning self-hosted MondoDB servers require manual patching.

This process allows an attacker to progressively leak large portions of the server's memory by sending repeated malformed requests.

### Attack Vector and Impact

The attack vector is fully remote, unauthenticated, and requires no user interaction. An adversary only needs network access to the [default MongoDB port](https://www.mongodb.com/docs/manual/reference/default-mongodb-port/) (TCP/27017) to exploit the flaw.

The primary impact is a high-confidentiality data loss. Although MongoBleed is limited to being a read-only memory disclosure vulnerability and does not allow for remote code execution, the strategic significance of the information that can be leaked is vast. Attackers could leverage the leaked secrets to enable further system compromise, data exfiltration and lateral movement.

This vulnerability affects the following MongoDB versions:

* Version 8.2: 8.2.0 -- 8.2.2
* Version 8.0: 8.0.0 -- 8.0.16
* Version 7.0: 7.0.0 -- 7.0.27
* Version 6.0: 6.0.0 -- 6.0.26
* Version 5.0: 5.0.0 -- 5.0.31
* Version 4.4: 4.4.0 -- 4.4.29

End-of-life (no fix available):

* All v4.2 versions
* All v4.0 versions
* All v3.6 versions

## Current Scope of the Attack Using CVE-2025-14847

The threat posed by MongoBleed is not theoretical. A working public PoC exploit was published on GitHub on Dec. 26, 2025. Security researchers observed active exploitation in the wild shortly after the vulnerability's disclosure.

Official confirmation of active exploitation came on Dec. 29, 2025, when the U.S. CISA added CVE-2025-14847 to its KEV Catalog, mandating that federal agencies patch the flaw.

Cortex Xpanse identified approximately 146,000 vulnerable instances of MongoDB exposed to the internet, providing a tangible metric for the global attack surface.

## Interim Guidance

If immediate patching is not feasible, the following temporary measures should be considered to help reduce risk:

1. **Network Segmentation**: Reduce exposure by blocking all inbound internet access to MongoDB instances on port TCP/27017. Connections should be restricted at the network level to explicitly trusted sources only.

2. **Disable zlib Compression** : As a temporary workaround, disable zlib compression support within the MongoDB configuration. This action prevents the vulnerable code path from being triggered. Safe alternatives include snappy, zstd or fully disabling compression.

Please refer to the [issues tracker maintained by MongoDB](https://jira.mongodb.org/browse/SERVER-115508) for additional suggestions and updates.

## Unit 42 Managed Threat Hunting Queries

The Unit 42 Managed Threat Hunting team continues to track any attempts to exploit this CVE across our Managed Services customers, using telemetry available within Cortex XDR. Cortex XDR customers who don't leverage Unit 42 Managed Services can also use the following XQL query to search for signs of exploitation.

The following query attempts to identify a high number of network connections to MongoDB servers. Results of this query may not explicitly indicate exploitation but could be used to signal systems for further review.  
// Description: High Velocity network connection to MongoDB server may indicate exploitation of MongoBleed (CVE-2025-14847) // Notes: Review the source IP of the requests and the host IP addresses. Validate they are not the same. If the IPs are on the same subnet it may be due to routing or load-balancing configuration. dataset = xdr\_data | filter event\_type = ENUM.NETWORK | filter lowercase(actor\_process\_image\_name) in ("mongod", "mongod.exe") | filter action\_network\_is\_server = true // Filter for non-RFC1918 IP addresses. To include all IPs (depending on routing configuration it is possible traffic may have the internal IP of a load balancer, proxy, router, or firewall) comment the following line. | filter action\_remote\_ip not in (null, "") | filter incidr(action\_remote\_ip, "10.0.0.0/8") != true and // RFC1918 incidr(action\_remote\_ip, "192.168.0.0/16") != true and // RFC1918 incidr(action\_remote\_ip, "172.16.0.0/12") != true and // RFC1918 incidr(action\_remote\_ip, "127.0.0.0/8") != true and // Loopback incidr(action\_remote\_ip, "169.254.0.0/16") != true and // Link Local incidr(action\_remote\_ip, "224.0.0.0/4") != true and // Multicast incidr(action\_remote\_ip, "255.255.255.255/32") != true and // Broadcast incidr(action\_remote\_ip, "198.18.0.0/15") != true // Reserved | fields \_time, agent\_hostname, agent\_id, actor\_effective\_username, agent\_ip\_addresses, agent\_external\_ip, actor\_process\_image\_name, actor\_process\_image\_path, action\_local\_ip, action\_local\_port, action\_remote\_ip, action\_remote\_port, action\_remote\_ip\_enrichment, action\_network\_app\_ids, action\_network\_connection\_id, action\_network\_dpi\_fields, action\_network\_packet\_data, action\_network\_protocol, action\_network\_session\_duration, action\_upload, action\_download | filter action\_network\_session\_duration \<= 5000 | bin \_time span = 1m | comp count(\_time) as Counter, values(agent\_ip\_addresses) as agent\_ip\_addresses, values(agent\_external\_ip) as agent\_external\_ip, values(action\_local\_port) as Local\_ports, count\_distinct(action\_local\_port) as Local\_port\_Count by agent\_hostname, action\_remote\_ip, \_time // Identify source IPs with a high volume of connections per Minute. This number can be increased or decreased as needed. The higher the number the greater the chance of malicious activity, while the lower the number the broader the scope/ ability to identify activity. | filter Counter \>= 500

|-------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | // Description: High Velocity network connection to MongoDB server may indicate exploitation of MongoBleed (CVE-2025-14847) // Notes: Review the source IP of the requests and the host IP addresses. Validate they are not the same. If the IPs are on the same subnet it may be due to routing or load-balancing configuration. dataset = xdr\_data | filter event\_type = ENUM.NETWORK | filter lowercase(actor\_process\_image\_name) in ("mongod", "mongod.exe") | filter action\_network\_is\_server = true // Filter for non-RFC1918 IP addresses. To include all IPs (depending on routing configuration it is possible traffic may have the internal IP of a load balancer, proxy, router, or firewall) comment the following line. | filter action\_remote\_ip not in (null, "") | filter incidr(action\_remote\_ip, "10.0.0.0/8") != true and // RFC1918 incidr(action\_remote\_ip, "192.168.0.0/16") != true and // RFC1918 incidr(action\_remote\_ip, "172.16.0.0/12") != true and // RFC1918 incidr(action\_remote\_ip, "127.0.0.0/8") != true and // Loopback incidr(action\_remote\_ip, "169.254.0.0/16") != true and // Link Local incidr(action\_remote\_ip, "224.0.0.0/4") != true and // Multicast incidr(action\_remote\_ip, "255.255.255.255/32") != true and // Broadcast incidr(action\_remote\_ip, "198.18.0.0/15") != true // Reserved | fields \_time, agent\_hostname, agent\_id, actor\_effective\_username, agent\_ip\_addresses, agent\_external\_ip, actor\_process\_image\_name, actor\_process\_image\_path, action\_local\_ip, action\_local\_port, action\_remote\_ip, action\_remote\_port, action\_remote\_ip\_enrichment, action\_network\_app\_ids, action\_network\_connection\_id, action\_network\_dpi\_fields, action\_network\_packet\_data, action\_network\_protocol, action\_network\_session\_duration, action\_upload, action\_download | filter action\_network\_session\_duration \<= 5000 | bin \_time span = 1m | comp count(\_time) as Counter, values(agent\_ip\_addresses) as agent\_ip\_addresses, values(agent\_external\_ip) as agent\_external\_ip, values(action\_local\_port) as Local\_ports, count\_distinct(action\_local\_port) as Local\_port\_Count by agent\_hostname, action\_remote\_ip, \_time // Identify source IPs with a high volume of connections per Minute. This number can be increased or decreased as needed. The higher the number the greater the chance of malicious activity, while the lower the number the broader the scope/ ability to identify activity. | filter Counter \>= 500 |

## Conclusion

While MongoBleed carries a Critical severity rating, successfully weaponizing it against a monitored enterprise is operationally difficult. Due to the return of unstructured, random fragments of data from an exploited server, capturing valuable data requires an attacker to barrage the server with thousands of requests.

This makes any worthwhile exploitation of MongoBleed a loud intrusion, creating a fingerprint that standard heuristics and rate-limiting controls should be well designed to detect and block long before significant data exfiltration typically occurs.

Palo Alto Networks customers are better protected by our products, as listed below.

## Palo Alto Networks Product Protections for CVE-2025-14847

Palo Alto Networks customers can leverage a variety of product protections and services to help identify and defend against this threat.

If you think you might 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: +1 (866) 486-4842 (866.4.UNIT42)
* UK: +44.20.3743.3660
* Europe and Middle East: +31.20.299.3130
* Asia: +65.6983.8730
* Japan: +81.50.1790.0200
* Australia: +61.2.4062.7950
* India: 000 800 050 45107
* South Korea: +82.080.467.8774

### Advanced Threat Prevention

[Next-Generation Firewall](https://docs.paloaltonetworks.com/ngfw) with the [Advanced Threat Prevention](https://docs.paloaltonetworks.com/advanced-threat-prevention/administration) security subscription can help block the attacks with best practices via the following Threat Prevention signature [96856](https://threatvault.paloaltonetworks.com/?q=96856) and [96857](https://threatvault.paloaltonetworks.com/?q=96857).

### Cortex XDR and XSIAM

[Cortex XDR](https://docs-cortex.paloaltonetworks.com/p/XDR) and [XSIAM](https://docs-cortex.paloaltonetworks.com/p/XSIAM) help protect against post-exploitation activities using the multi-layer protection approach.

### Cortex Xpanse

[Cortex Xpanse](https://www.paloaltonetworks.com/cortex/cortex-xpanse) is designed to identify exposed MongoDB devices on the public internet and escalate these findings to defenders. Customers can enable alerting on this risk by ensuring that the MongoDB Server and Insecure MongoDB Server Attack Surface Rules are enabled.

[Cortex Attack Surface Testing](https://docs-cortex.paloaltonetworks.com/r/Cortex-XPANSE/2/Cortex-Xpanse-Expander-User-Guide/Attack-Surface-Testing) (AST) can also validate whether exposed MongoDB instances are vulnerable to exploitation by executing benign PoC checks.

Identified findings can either be viewed in the Threat Response Center or in the incident view of Expander. These findings are also available for [Cortex XSIAM](https://docs-cortex.paloaltonetworks.com/p/XSIAM) customers who have purchased the attack surface management (ASM) module.

### Cortex Cloud

[Cortex Cloud](https://www.paloaltonetworks.com/cortex/cloud/demo?utm_source=google-jg-amer-prisma_cloud-scpc-cstp&utm_medium=paid_search&utm_campaign=google-prisma_cloud-cloud_st_portfolio-amer-multi-lead_gen-en-brand&utm_content=701Ki000000LqJaIAK&utm_term=cortex%20cloud&cq_plac=&cq_net=g&gad_source=1&gad_campaignid=22212528892&gbraid=0AAAAADHVeKllQ-_yV2xRPxFm_qsmQQqso&gclid=Cj0KCQiA1JLLBhCDARIsAAVfy7iVuJVJtyKgsK4L7UP0AcRhOQV3LDGHeeQ0FGJwUx84T4bNphe_55UaAqPQEALw_wcB) can help [detect](https://www.paloaltonetworks.com/cortex/cloud/vulnerability-management) cloud-hosted resources vulnerable to CVE-2025-14847 through the proper placement of Cortex Cloud [XDR endpoint agent](https://docs-cortex.paloaltonetworks.com/r/Cortex-CLOUD/Cortex-Cloud-Runtime-Security-Documentation/Endpoint-protection) and [serverless agents](https://docs-cortex.paloaltonetworks.com/r/Cortex-XSIAM/Cortex-XSIAM-Premium-Documentation/Use-cases) within a cloud environment.

While MongoDB's managed service offering was automatically patched by the MongoDB Security Engineering team, self-hosted cloud instances can still be vulnerable. Cortex Cloud is designed to provide discovery of self-hosted MongoDB instances across Amazon Web Services (AWS), Azure and Google Cloud (GCP). This allows organizations to gain visibility into cloud-hosted assets, a critical first step in mitigating threats like MongoBleed.

Furthermore, Cortex Cloud has detection rules specifically designed to identify and alert on any self-hosted MongoDB instances that are publicly accessible.

Lastly, if cloud identities were leaked from a compromised MongoDB instance, [Cortex Cloud Identity Security](https://docs-cortex.paloaltonetworks.com/r/Cortex-XSIAM/Cortex-XSIAM-Premium-Documentation/What-is-Cortex-Cloud-Identity-Security) can help detect common post-exploitation identity-based techniques used to gain and maintain persistence resulting in further exploitation of cloud platforms.

*Updated Jan. 14, 2026, at 1:05 p.m. PT to remove the word "vulnerable" from the sentence about exposed servers.*

*Updated Feb. 6, 2026, at 4:47 p.m. PT to add protection information about Advanced Threat Prevention.*
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### Tags

* [CVE-2025-14847](https://unit42.paloaltonetworks.com/tag/cve-2025-14847/ "CVE-2025-14847")
* [MongoDB](https://unit42.paloaltonetworks.com/tag/mongodb/ "MongoDB")  
  [Threat Research Center](https://unit42.paloaltonetworks.com "Threat Research") [Next: Remote Code Execution With Modern AI/ML Formats and Libraries](https://unit42.paloaltonetworks.com/rce-vulnerabilities-in-ai-python-libraries/ "Remote Code Execution With Modern AI/ML Formats and Libraries")

### Table of Contents

* 

### Related Articles

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## Related Vulnerabilities Resources

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

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* [Vulnerability Exploitation](https://unit42.paloaltonetworks.com/tag/vulnerability-exploitation/ "Vulnerability Exploitation")  
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  ![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)  
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  ![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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