What’s Vulnerable › Vulnerabilities

CVE-2023-22281: BIG-IP AFM vulnerability

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-02-01 · updated 2026-06-17
• Weakness: CWE-908

Description

On versions 17.0.x before 17.0.0.2, 16.1.x before 16.1.3.3, 15.1.x before 15.1.8, 14.1.x before 14.1.5.3, and all versions of 13.1.x, when a BIG-IP AFM NAT policy with a destination NAT rule is configured on a FastL4 virtual server, undisclosed traffic 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

• BIG-IP: from 13.1.0 through 13.1.5; from 14.1.0 before 14.1.5.3; from 15.1.0 before 15.1.8; from 16.1.0 before 16.1.3.3; from 17.0.0 before 17.0.0.2 — fixed in 14.1.5.3, 15.1.8, 16.1.3.3, 17.0.0.2

How to fix

Upgrade to a fixed version: BIG-IP 14.1.5.3, 15.1.8, 16.1.3.3, 17.0.0.2. Check the vendor advisory for mitigations.

References

• https://my.f5.com/manage/s/article/K46048342
• https://my.f5.com/manage/s/article/K46048342

Get alerted when CVE-2023-22281 or the next vulnerability affects your stack