CVE-2025-41431: big-ip analytics Memory Corruption

Description

When connection mirroring is configured on a virtual server, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate in the standby BIG-IP systems in a traffic group. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-787 Out-of-bounds Write

Affected Products

Vendor	Product	Versions
f5	big-ip_access_policy_manager	All
f5	big-ip_advanced_firewall_manager	All
f5	big-ip_analytics	All
f5	big-ip_application_acceleration_manager	All
f5	big-ip_application_security_manager	All
f5	big-ip_domain_name_system	All
f5	big-ip_fraud_protection_service	All
f5	big-ip_global_traffic_manager	All
f5	big-ip_link_controller	All
f5	big-ip_local_traffic_manager	All
f5	big-ip_policy_enforcement_manager	All

References

Advisories & Patches

https://my.f5.com/manage/s/article/K000150668

Frequently Asked Questions

What is CVE-2025-41431? +

When connection mirroring is configured on a virtual server, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate in the standby BIG-IP systems in a traffic group. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-41431? +

CVE-2025-41431 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-41431? +

CVE-2025-41431 affects products from f5, specifically: big-ip_access_policy_manager, big-ip_advanced_firewall_manager, big-ip_analytics, big-ip_application_acceleration_manager, big-ip_application_security_manager, big-ip_domain_name_system, big-ip_fraud_protection_service, big-ip_global_traffic_manager, big-ip_link_controller, big-ip_local_traffic_manager, big-ip_policy_enforcement_manager. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-41431? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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