CVE-2026-40060: BIG-IP Advanced WAF and ASM vulnerability

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-13 · updated 2026-10-26
Weakness: CWE-252

Description

When a BIG-IP Advanced WAF or ASM security policy is configured on a virtual server, undisclosed requests 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 16.1.0 through 16.1.6; from 17.1.0 through 17.1.3; from 17.5.0 through 17.5.1; 21.0.0
BIG-IP ASM: from 16.1.0 through 16.1.6; from 17.1.0 through 17.1.3; from 17.5.0 through 17.5.1; 21.0.0

References

https://my.f5.com/manage/s/article/K000160727

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