CVE-2026-22548: BIG-IP Advanced WAF and ASM vulnerability

Severity: medium (CVSS 5.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-02-04 · updated 2026-06-17
Weakness: CWE-362

Description

When a BIG-IP Advanced WAF or ASM security policy is configured on a virtual server, undisclosed requests along with conditions beyond the attacker's control can cause the bd process to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected products

F5 Big-Ip Advanced Web Application Firewall: from 17.1.0 before 17.1.3 — fixed in 17.1.3
BIG-IP ASM: from 17.1.0 before 17.1.3 — fixed in 17.1.3

How to fix

Upgrade to a fixed version: F5 Big-Ip Advanced Web Application Firewall 17.1.3; BIG-IP ASM 17.1.3. Check the vendor advisory for mitigations.

References

https://my.f5.com/manage/s/article/K000158072

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