CVE-2026-42780: BIG-IP SSL Orchestrator vulnerability

Severity: medium (CVSS 4.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-13 · updated 2026-10-26
Weakness: CWE-22

Description

A directory traversal vulnerability exists in BIG-IP SSL Orchestrator that allows an authenticated attacker with high privilege to overwrite, delete or corrupt arbitrary local files. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected products

F5 Big-Ip Ssl Orchestrator: from 17.1.0 through 17.1.3; from 17.5.0 through 17.5.1; 21.0.0

References

https://my.f5.com/manage/s/article/K000149743

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