CVE-2026-22548

BIG-IP Advanced WAF and ASM vulnerability

State: Published
Severity: 8.2 High
Published: Feb 4, 2026
Updated: Feb 4, 2026
Reserved: Jan 21, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	8.2 High	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	f5
3.1	5.9 Medium	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H	f5

Weaknesses

CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Affected Products

Product	Versions
BIG-IPF5	21.0.0 and laterNot affected 17.5.0 and laterNot affected 17.1.0 to before 17.1.3Affected 16.1.0 and laterNot affected

References

https://my.f5.com/manage/s/article/K000158072vendor-advisory

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