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Fixed

LIN1021-25611 : Security Advisory - dnsmasq - CVE-2026-4892

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 write vulnerability in the DHCPv6 implementation of dnsmasq allows local attackers to execute arbitrary code with root privileges via a crafted DHCPv6 packet.

CVEs

CVE-2026-4892