Summary
OpenBSD OpenSSH on Linux contains an unexpected status code or return value vulnerability that could allow for authentication bypass.
- Vendor
- OpenBSD
- Product
- OpenSSH
- Added to KEV
- Nov 9, 2026
- Remediation due
- Nov 12, 2026 (US federal deadline)
- Ransomware use
- Not known
- Weakness
- CWE-394
- EPSS
- 18.9% as of Nov 12
In the news · last mention Nov 9
In national CERT advisories
- Alert: Vulnerability found in OpenSSH on Alpine Linux, risk of unauthorized login without password TH
ThaiCERT (Thai) · Nov 9, 2026 - OpenSSH Security Restriction Bypass Vulnerability
HKCERT security bulletins · Nov 6, 2026
References