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Vulnerability DatabaseCVE-2025-41431

CVE-2025-41431: 
F5 BIG-IP Advanced Firewall Manager vulnerability analysis and mitigation

Overview

CVE-2025-41431 was discovered and disclosed on May 7, 2025, affecting BIG-IP systems when connection mirroring is configured on a virtual server. The vulnerability impacts the Traffic Management Microkernel (TMM) in standby BIG-IP systems within a traffic group (NVD, Wiz).

Technical details

The vulnerability is classified as an Out-of-bounds Write (CWE-787) issue with a CVSS v4.0 base score of 8.7 HIGH and CVSS v3.1 base score of 7.5 HIGH. The vulnerability is network-accessible (AV:N) with low attack complexity (AC:L), requiring no privileges (PR:N) or user interaction (UI:N) (NVD, Wiz).

Impact

When exploited, the vulnerability allows undisclosed requests to cause the Traffic Management Microkernel (TMM) to terminate in the standby BIG-IP systems that are part of a traffic group. The CVSS metrics indicate high impact on availability (VA:H) but no impact on confidentiality or integrity (NVD, Wiz).

Mitigation and workarounds

F5 Networks has documented this vulnerability and provided mitigation information through their security advisory. Software versions that have reached End of Technical Support (EoTS) are not evaluated (F5 Article).

Additional resources

Source: This report was generated using AI

Related F5 BIG-IP Advanced Firewall Manager vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2025-41431HIGH8.7
  • F5 BIG-IP Advanced Firewall ManagerF5 BIG-IP Advanced Firewall Manager
  • cpe:2.3:a:f5:big-ip_application_security_manager
NoYesMay 07, 2025
CVE-2025-36557HIGH8.7
  • F5 BIG-IP Advanced Firewall ManagerF5 BIG-IP Advanced Firewall Manager
  • cpe:2.3:a:f5:big-ip_application_security_manager
NoYesMay 07, 2025
CVE-2025-22846HIGH8.7
  • F5 BIG-IP Advanced Firewall ManagerF5 BIG-IP Advanced Firewall Manager
  • cpe:2.3:a:f5:big-ip_domain_name_system
NoYesFeb 05, 2025
CVE-2025-23239HIGH8.5
  • F5 BIG-IP Advanced Firewall ManagerF5 BIG-IP Advanced Firewall Manager
  • cpe:2.3:a:f5:big-ip_local_traffic_manager
NoYesFeb 05, 2025
CVE-2025-54500MEDIUM6.9
  • F5 BIG-IP Advanced Firewall ManagerF5 BIG-IP Advanced Firewall Manager
  • cpe:2.3:a:f5:big-ip_advanced_firewall_manager
NoYesAug 13, 2025

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