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Microsoft Security Response CenterCVE-2026-55655

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

Mariner

Read the vendor bulletin Get alerts for azl3 openssh 9.8p1-6 on Azure Linux
5.0CVSS out of 10Medium severity
Scope

What the vendor says is affected

  • azl3 openssh 9.8p1-6 on Azure Linux 3.0
  • azl3 openssh 9.8p1-8 on Azure Linux 3.0
  • azl3 openssh 9.8p1-9 on Azure Linux 3.0
  • azl3 openssh 9.8p1-10 on Azure Linux 3.0
Next step

What the vendor recommends

Release Notes

Review the complete instructions on the vendor's site
Timeline

When this advisory changed

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Updated by Microsoft Security Response Center

    The vendor changed the advisory after it was first published.

  3. Added to SecurityAlert

    We collected the advisory from the official source.

Vulnerabilities

CVEs named in this advisory

CVE-2026-55655View CVSS, KEV, EPSS, and threat context
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