What’s Vulnerable › Vulnerabilities
CVE-2024-21771: F5 AFM Signature Matching Vulnerability
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2024-02-14 · updated 2026-06-17
- Weakness: CWE-770
Description
For unspecified traffic patterns, BIG-IP AFM IPS engine may spend an excessive amount of time matching the traffic against signatures, resulting in Traffic Management Microkernel (TMM) restarting and traffic disruption. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
Affected products
- BIG-IP: from 15.1.0 before 15.1.9; from 16.1.0 before 16.1.4; 17.1.0 — fixed in 15.1.9, 16.1.4
How to fix
Upgrade to a fixed version: BIG-IP 15.1.9, 16.1.4. Check the vendor advisory for mitigations.
References
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