Traffic Management Microkernel Vulnerability in F5 Networks Products
CVE-2025-36557

8.7HIGH

Key Information:

Vendor

F5
Status
Big-ip
Big-ip Next Spk
Big-ip Next Cnf
Vendor
CVE Published:
7 May 2025

What is CVE-2025-36557?

A vulnerability exists within the Traffic Management Microkernel (TMM) of F5 Networks' products, where an HTTP profile configured with the Enforce RFC Compliance option can lead to instability. Undisclosed requests targeting the server may cause unexpected termination of the TMM, resulting in denial of service. It is crucial for users to ensure that they are running supported versions and to evaluate their configurations to mitigate risks.

Affected Version(s)

BIG-IP 17.5.0

BIG-IP 17.1.0 < 17.1.2

BIG-IP 16.1.0 < 16.1.5

References

https://my.f5.com/manage/s/article/K000139571
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
.
CVE-2025-36557 : Traffic Management Microkernel Vulnerability in F5 Networks Products