Medium5.9Red Hat & Ubuntu Linux

Out-of-bounds write via TSIG record processing

CVE-2026-5435 Published Apr 28, 2026

CVE-2026-5435

Affected products & platforms

Red Hat & Ubuntu LinuxUnclassified

Summary

Out-of-bounds write via TSIG record processing. Red Hat rates this moderate (CVSS 5.9). Weakness: CWE-120. Affected package(s): glibc-main. Resolved in Red Hat advisory RHSA-2026:12740 — update the affected packages (`sudo dnf update`).

Affected versions

glibc-main-2.42-12.hum1

Official advisory · high-confidence parse· fetched 6 hours ago·verify at source

Fixed versions

RHSA-2026:12740

Official advisory · high-confidence parse· fetched 6 hours ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Update the affected package(s) to the fixed version shipped in RHSA-2026:12740 (`sudo dnf update` / `yum update`).

Official advisory · high-confidence parse· fetched 6 hours ago·verify at source

Discussion(0)

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