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Acknowledged

LIN1021-21424 : Security Advisory - busybox - CVE-2026-26158

Created: Feb 11, 2026    Updated: Mar 5, 2026
Found In Version: 10.21.20.2
Severity: Standard
Applicable for: Wind River Linux LTS 21
Component/s: Userspace

Description

A flaw was found in BusyBox. This vulnerability allows an attacker to modify files outside of the intended extraction directory by crafting a malicious tar archive containing unvalidated hardlink or symlink entries. If the tar archive is extracted with elevated privileges, this flaw can lead to privilege escalation, enabling an attacker to gain unauthorized access to critical system files.