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Fixed

LIN1021-25473 : Security Advisory - linux - CVE-2026-43383

Created: May 9, 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: Kernel

Description

In the Linux kernel, the following vulnerability has been resolved:  net/tcp-md5: Fix MAC comparison to be constant-time  To prevent timing attacks, MACs need to be compared in constant time.  Use the appropriate helper function for this.

CVEs

CVE-2026-43383