BIG-IP
CVE-2026-42780: BIG-IP SSL Orchestrator vulnerability
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.
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityMEDIUMCVSS 4.0 6.9
EPSS1.2%Chance of exploitation in 30 days
Public exploitNot tracked
FixAvailable
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| BIG-IP 21.1 | Not affected |
| BIG-IP 21.0 | 21.0.0.1 or later |
| BIG-IP 17.5 | 17.5.1.5 or later |
| BIG-IP 17.1 | 17.1.3.1 or later |
| BIG-IP 16.1 | * or later |
| SSL Orchestrator 14.0 | Not affected |
| SSL Orchestrator 13.0 | 13.1.3 or later |
| SSL Orchestrator 12.0 | 12.3.2 or later |
| SSL Orchestrator 11.0 | 11.4.1 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
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.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 12 Oct 2026.