CVE-2026-123158
HIGH CISA KEV 29 PoCs
ACT NOW
Priority: 1.53
BB Relevance:
80/100
Published: 2026-11-05
Modified: 2026-11-10
First seen: 2026-11-05
Status: active
Attack Surface
Network
No Auth
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Network
AC:
High
PR:
None
UI:
None
S:
Unchanged
C:
High
I:
High
A:
High
Description
OpenBSD OpenSSH on Linux contains an unexpected status code or return value vulnerability that could allow for authentication bypass.
CISA Known Exploited Vulnerability
Vendor / Product
OpenBSD — OpenSSH
Date Added
2026-11-09
Remediation Due
2026-11-12
This vulnerability affects an open-source component, third-party library, protocol, or proprietary implementation that could be used by different products. For more information, please see: https://www.openssh.org/releasenotes.html ; https://alpinelinux.org/posts/2026-11-05-openssh-password-authentication-bypass/ ; https://github.com/openssh/openssh-portable/commit/4353fdc43ef646c43a8dda7025cc1a898caf1482 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-123158
Weakness Classification (1)
Affected Software (14)
| Vendor | Product | Version |
|---|---|---|
| OpenBSD | OpenSSH | 0 < 10.6p2 |
| OpenBSD | OpenSSH | 0 < 10.6p2 |
| OpenBSD | OpenSSH | 0 < 10.6p2 |
| OpenBSD | OpenSSH | 0 < 10.6p2 |
| OpenBSD | OpenSSH | 0 < 10.6p2 |
| OpenBSD | OpenSSH | 0 < 10.6p2 |
| OpenBSD | OpenSSH | 0 < 10.6p2 |
| OpenBSD | OpenSSH | 0 < 10.6p2 |
| OpenBSD | OpenSSH | 0 < 10.6p2 |
| OpenBSD | OpenSSH | 0 < 10.6p2 |
| OpenBSD | OpenSSH | 0 < 10.6p2 |
| openbsd | openssh | < 10.6 |
| openbsd | openssh | 10.6 |
| openbsd | openssh | 10.6 |