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Fixed

LIN1021-25610 : Security Advisory - dnsmasq - CVE-2026-4891

Created: May 12, 2026    Updated: Jun 8, 2026
Resolved Date: Jun 8, 2026
Found In Version: 10.21.20.2
Fix Version: 10.21.20.27
Severity: Standard
Applicable for: Wind River Linux LTS 21
Component/s: Userspace

Description

A heap-based out-of-bounds read vulnerability in the DNSSEC validation of dnsmasq allows remote attackers to cause a denial of service via a crafted DNS packet.

CVEs

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