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Fixed

LIN1021-19588 : Security Advisory - grub - CVE-2025-61662

Created: Nov 19, 2025 Updated: Jun 8, 2026

Resolved Date: Jun 8, 2026

Found In Version: 10.21.20.1

Fix Version: 10.21.20.27

Severity: Standard

Applicable for: Wind River Linux LTS 21

Component/s: Userspace

Description

A Use-After-Free vulnerability has been discovered in GRUB's gettext module. This flaw stems from a programming error where the gettext command remains registered in memory after its module is unloaded. An attacker can exploit this condition by invoking the orphaned command, causing the application to access a memory location that is no longer valid. An attacker could exploit this vulnerability to cause grub to crash, leading to a Denial of Service. Possible data integrity or confidentiality compromise is not discarded.

CVEs

CVE-2025-61662