Vulnerability · Published May 13, 2026 · Assigned by f5
CVE-2026-42780BIG-IP SSL Orchestrator vulnerability
Medium 4.9
In plain English
A medium-severity path traversal in BIG-IP from F5. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities).
Severity (CVSS 3.1)4.9Medium
Exploit odds (30 days)0.9%top 40.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| F5 | BIG-IP | 21.0.0 – before 21.0.0.117.5.0 – before 17.5.1.517.1.0 – before 17.1.3.116.1.0 – before * |
| F5 | SSL Orchestrator | 13.0 – before 13.1.312.0 – before 12.3.211.0 – before 11.4.1 |
Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
References
- https://my.f5.com/manage/s/article/K000149743 vendor-advisory, patch