Memory Resource Utilization Vulnerability in F5 Virtual Server SSL Profiles
CVE-2025-61974

8.7HIGH

Key Information:

Vendor

F5
Status
Big-ip
Big-ip Next Spk
Big-ip Next Cnf
Big-ip Next For Kubernetes
Vendor
CVE Published:
15 October 2025

What is CVE-2025-61974?

A vulnerability exists in F5 Virtual Server configurations with client SSL profiles where undisclosed requests can lead to increased memory resource utilization. This can impact the overall performance and reliability of the server. The issue is pertinent to software versions that have not reached End of Technical Support. Administrators should assess their deployments and ensure they are running supported versions to mitigate potential risks associated with this vulnerability.

Affected Version(s)

BIG-IP 17.5.0 < 17.5.1.3

BIG-IP 17.1.0 < 17.1.3

BIG-IP 16.1.0 < 16.1.6.1

References

https://my.f5.com/manage/s/article/K000156733
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-2025-61974 : Memory Resource Utilization Vulnerability in F5 Virtual Server SSL Profiles