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Medium6.5Red Hat Linux

Medium [CVE-2026-0966] Denial of Service via zero-length input in ssh_get_hexa()

This medium-severity Red Hat Linux advisory covers CVE-2026-0966 affecting Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat Hardened Images.

CVE-2026-0966 Published Feb 10, 2026
Affected products & platforms
Red Hat LinuxUnclassified
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Summary

Denial of Service via zero-length input in ssh_get_hexa(). Red Hat rates this moderate (CVSS 6.5).

Weakness: CWE-124. Affected package(s): libssh, libssh-main.

Resolved in Red Hat advisory RHSA-2026:18160 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 9; Red Hat Hardened Images; Red Hat Enterprise Linux 8; and 1 more.

Affected versions
  • libssh-0:0.12.0-2.el10
  • libssh-main-0.12.0-1.1.hum1
  • libssh-0:0.10.4-18.el9

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions
  • RHSA-2026:18160

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Update the affected package(s) to the fixed version shipped in RHSA-2026:18160 (`sudo dnf update` / `yum update`).

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

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