Vulnerability in F5 Networks Traffic Management Microkernel Affects UDP Virtual Server Configurations
CVE-2026-41956

8.7HIGH

Key Information:

Vendor

F5
Status
Big-ip
Big-ip Next Cnf
Big-ip Next For Kubernetes
Vendor
CVE Published:
13 May 2026

What is CVE-2026-41956?

An issue has been identified where, upon configuration of a classification profile on a UDP virtual server, an attacker can exploit undisclosed requests to cause the Traffic Management Microkernel (TMM) to terminate unexpectedly. This disruption can lead to service outages and security concerns for affected users. Organizations are advised to assess their configurations and apply the necessary patches to mitigate this vulnerability.

Affected Version(s)

BIG-IP 17.5.0 < 17.5.1.4

BIG-IP 17.1.0 < 17.1.3.1

BIG-IP 16.1.0

References

https://my.f5.com/manage/s/article/K000158038
vendor-advisorypatch

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
.