MEDIUM 5.0 Microsoft

CVE-2026-55655

Openssh: local mitm of x11 forwarding via abstract unix socket pre-binding in red hat enterprise linux openssh client versions

Microsoft Security Update 2026-Jun: Openssh: local mitm of x11 forwarding via abstract unix socket pre-binding in red hat enterprise linux openssh client versions

Affected Products

azl3 openssh 9.8p1-6 on Azure Linux 3.0
azl3 openssh 9.8p1-8 on Azure Linux 3.0

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55655
https://nvd.nist.gov/vuln/detail/CVE-2026-55655

Published: 2026-06-09 · Source: Microsoft · Feed updated: 2026-08-04

This medium severity vulnerability with a CVSS score of 5.0 was published on 2026-06-09 via Microsoft. Affected: azl3 openssh 9.8p1-6 on Azure Linux 3.0, azl3 openssh 9.8p1-8 on Azure Linux 3.0.

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