CVE-2025-66406
low-risk
Published 2025-12-03
Step CA is an online certificate authority for secure, automated certificate management for DevOps. Prior to 0.29.0, there is an improper authorization check for SSH certificate revocation. This affects deployments configured with the SSHPOP provisioner. This vulnerability is fixed in 0.29.0.
Do I need to act?
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0.04% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.0/10
Medium
NETWORK
/ HIGH complexity
21
/ 100
low-risk
Severity
16/34 · Moderate
Exploitability
0/34 · Minimal
Exposure
5/34 · Minimal