Denial of Service Vulnerability in BIG-IP AFM by F5 Networks
CVE-2025-59478

8.7HIGH

Key Information:

Vendor

F5
Status
Big-ip
Vendor
CVE Published:
15 October 2025

What is CVE-2025-59478?

When configured with a denial-of-service protection profile, the F5 BIG-IP AFM can experience issues leading to unexpected terminations of the Traffic Management Microkernel (TMM) process. This vulnerability arises from the handling of undisclosed requests during its operation, potentially disrupting service availability. It is important for users to review the configuration and ensure that they update their systems to maintain optimal security.

Affected Version(s)

BIG-IP 17.5.0 < 17.5.1

BIG-IP 17.1.0 < 17.1.3

BIG-IP 15.1.0 < 15.1.10.8

References

https://my.f5.com/manage/s/article/K000152341
vendor-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

F5
JSON
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CVE-2025-59478 : Denial of Service Vulnerability in BIG-IP AFM by F5 Networks