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HIGH · 7.5

CVE-2025-61951

Undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate.  This issue may occur when a Datagram Transport Layer Security (DTLS) 1.2 virtual server is enabled with a Server S...

Vulnerability Description

Undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate.  This issue may occur when a Datagram Transport Layer Security (DTLS) 1.2 virtual server is enabled with a Server SSL profile that is configured with a certificate, key, and the SSL Sign Hash set to ANY, and the backend server is enabled with DTLS 1.2 and client authentication.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
F5Big-Ip Access Policy Manager>= 16.1.0, < 16.1.6.1
F5Big-Ip Advanced Firewall Manager>= 16.1.0, < 16.1.6.1
F5Big-Ip Advanced Web Application Firewall>= 16.1.0, < 16.1.6.1
F5Big-Ip Analytics>= 16.1.0, < 16.1.6.1
F5Big-Ip Application Acceleration Manager>= 16.1.0, < 16.1.6.1
F5Big-Ip Application Security Manager>= 16.1.0, < 16.1.6.1
F5Big-Ip Application Visibility And Reporting>= 16.1.0, < 16.1.6.1
F5Big-Ip Automation Toolchain>= 16.1.0, < 16.1.6.1
F5Big-Ip Carrier-Grade Nat>= 16.1.0, < 16.1.6.1
F5Big-Ip Container Ingress Services>= 16.1.0, < 16.1.6.1
F5Big-Ip Ddos Hybrid Defender>= 16.1.0, < 16.1.6.1
F5Big-Ip Domain Name System>= 16.1.0, < 16.1.6.1
F5Big-Ip Edge Gateway>= 16.1.0, < 16.1.6.1
F5Big-Ip Fraud Protection Service>= 16.1.0, < 16.1.6.1
F5Big-Ip Global Traffic Manager>= 16.1.0, < 16.1.6.1
F5Big-Ip Link Controller>= 16.1.0, < 16.1.6.1
F5Big-Ip Local Traffic Manager>= 16.1.0, < 16.1.6.1
F5Big-Ip Policy Enforcement Manager>= 16.1.0, < 16.1.6.1
F5Big-Ip Ssl Orchestrator>= 16.1.0, < 16.1.6.1
F5Big-Ip Webaccelerator>= 16.1.0, < 16.1.6.1

Related Weaknesses (CWE)

CWE-125

References

FAQ

What is CVE-2025-61951?

CVE-2025-61951 is a vulnerability with a CVSS score of 7.5 (HIGH). Undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate.  This issue may occur when a Datagram Transport Layer Security (DTLS) 1.2 virtual server is enabled with a Server S...

How severe is CVE-2025-61951?

CVE-2025-61951 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-61951?

Check the references section above for vendor advisories and patch information. Affected products include: F5 Big-Ip Access Policy Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Advanced Web Application Firewall, F5 Big-Ip Analytics, F5 Big-Ip Application Acceleration Manager.