Memory Corruption Vulnerability in F5 BIG-IP SSL Orchestrator
CVE-2025-55036

8.7HIGH

Key Information:

Vendor

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

What is CVE-2025-55036?

F5 BIG-IP SSL Orchestrator can be affected by a condition where, if the explicit forward proxy is enabled on a virtual server, certain undisclosed traffic may trigger memory corruption. This could lead to unexpected behavior and potential security risks. It is important for users to be aware of their configurations and refer to F5's advisory for mitigation strategies, especially those using versions that are still supported.

Affected Version(s)

BIG-IP 17.1.0 < 17.1.3

BIG-IP 16.1.0 < 16.1.6

BIG-IP 15.1.0 < 15.1.10.8

References

https://my.f5.com/manage/s/article/K000151368
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-2025-55036 : Memory Corruption Vulnerability in F5 BIG-IP SSL Orchestrator