Medium5.5Red Hat Linux

Medium [CVE-2026-3203] Buffer Over-read in Wireshark

This medium-severity Red Hat Linux advisory covers CVE-2026-3203 affecting Red Hat Enterprise Linux 1, wireshark.

CVE-2026-3203 Published Feb 25, 2026

CVE-2026-3203

Affected products & platforms

Red Hat LinuxUnclassified

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Summary

Buffer Over-read in Wireshark. Red Hat rates this moderate (CVSS 5.5).

Weakness: CWE-126. Affected package(s): wireshark.

Resolved in Red Hat advisory RHSA-2026:26182 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: Red Hat Enterprise Linux 1.

Affected versions

wireshark-1:4.4.2-4.el10_1.4
wireshark-1:4.4.2-3.el10_0.4

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

Fixed versions

RHSA-2026:26182

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-2026:26182 (`sudo dnf update` / `yum update`).

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

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