CVE-2025-22846 is a high-severity vulnerability affecting F5 BIG-IP products, particularly when SIP Session and Router ALG profiles are configured on a Message Routing type virtual server. This vulnerability allows undisclosed traffic to cause the Traffic Management Microkernel (TMM) to terminate, leading to potential service disruptions. The CVSS score of 8.7 indicates a high level of risk, emphasizing the need for immediate attention from organizations utilizing affected F5 products.
Risk to organizations includes availability disruption, as this vulnerability can lead to TMM termination. The impacted systems are widely deployed in various environments where Kubernetes technology is employed, making the potential impact significant. Organizations should prioritize patching immediately to prevent exploitation of this vulnerability.
Currently, there is no confirmed public exploit for CVE-2025-22846, but the combination of a high CVSS score and the lack of known mitigations indicates this vulnerability should be treated with urgency. Organizations must ensure their systems are updated to protect against this and similar vulnerabilities effectively.
The urgency for defenders is heightened, given that this vulnerability affects multiple components within the F5 BIG-IP ecosystem, including the BIG-IP Access Policy Manager and other critical services. Immediate action is crucial to mitigate any potential risks.
Vulnerability Details
The official CVE description states: 'When SIP Session and Router ALG profiles are configured on a Message Routing type virtual server, undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate.' This vulnerability has a CVSS score of 8.7, classified as high severity due to its potential impact on system availability. The affected vendor is F5, and the specific products include the BIG-IP Access Policy Manager, BIG-IP Advanced Firewall Manager, and others.
Published on February 5, 2025, this vulnerability remains under analysis, and the CWE classification is CWE-404: Improper Resource Shutdown or Release. The vulnerability primarily affects versions of the F5 BIG-IP products that fall within specific ranges.
Technical Analysis
The root cause of CVE-2025-22846 lies in the configuration of SIP Session and Router ALG profiles on a Message Routing type virtual server. The attack vector is network-based, with low complexity and no privileges or user interaction required. This opens the door for potential disruption without any significant barriers for an attacker.
The availability impact is categorized as high, given that successful exploitation can lead to TMM termination. This scenario could result in service outages, which are critical for organizations that rely on uninterrupted service delivery. Confidentiality and integrity impacts are noted as none, indicating the vulnerability does not compromise data directly.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2025-22846 is significant. Organizations using F5 BIG-IP products must assess their exposure to this vulnerability, especially in environments that utilize Kubernetes technology. The potential blast radius is substantial, as the vulnerability affects multiple components that are critical to network operations.
Organizations should address in priority patch cycle to mitigate the risk of availability disruption. The urgency is underscored by the high CVSS score and the potential for exploitation, which could lead to significant operational impacts.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions include:
F5 BIG-IP Next Service Proxy for Kubernetes versions 1.7.0 through 1.7.6, and versions 1.8.0 to 1.9.0 are vulnerable.
Mitigation & Remediation
To mitigate this vulnerability, organizations should apply the available vendor patches. If patches are not available, organizations should consider implementing workarounds and configuration hardening measures to limit exposure.
Organizations should validate remediation through penetration testing to identify similar weaknesses.
Detection Guidance
Monitor logs for indicators of TMM termination events and unusual traffic patterns that may indicate exploitation attempts. Behavioral anomalies in traffic management can also signal the presence of this vulnerability.
AppSecure Threat Intelligence Insight
CVE-2025-22846 highlights the importance of continuous monitoring and prompt patching within organizations utilizing F5 BIG-IP products. The trend of vulnerabilities affecting network availability underscores the need for robust security practices.
For those looking to enhance their security posture, exploring our red teaming services can provide a comprehensive assessment of security vulnerabilities.
Engaging in a thorough review of security configurations and practices will also be beneficial. For further guidance, refer to our application security assessment resources.
Finally, organizations should stay informed about evolving threats by reviewing our insights on vulnerability exposure trends to anticipate and address potential security risks.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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