CVE-2024-21763: F5 BIG-IP Advanced Firewall Manager

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

When BIG-IP AFM Device DoS or DoS profile is configured with NXDOMAIN attack vector and bad actor detection, undisclosed queries can cause the Traffic Management Microkernel (TMM) to terminate.  NOTE: Software versions which have reached End of Technical Support (EoTS) are not evaluated

Affected products

• F5 BIG-IP Advanced Firewall Manager: from 17.1.0, before 17.1.1 (fixed in 17.1.1)

Published 2024-02-14. Last modified 2026-06-17.