CVE-2025-41259

SWUpdate Untrusted Script Execution via Signed Update TOCTOU

State: Published
Severity: 7.3 High
Published: Jun 3, 2026
Updated: Jun 3, 2026
Reserved: Apr 16, 2025

Description

SWUpdate before 2026.05 is affected by a time-of-check time-of-use (TOCTOU) race condition that allows local unprivileged attackers to escalate privileges to root or install untrusted contents using a signed update.

Scores

CVSS	Score	Vector	Source
4.0	7.3 High	CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	sba-research

Weaknesses

CWE-367 Time-of-check time-of-use (TOCTOU) race condition

Affected Products

Product	Versions
SWUpdatesbabic	before 2026.05Affected

References

https://github.com/sbaresearch/advisories/tree/public/2025/SBA-ADV-20251206-01_SWUpdate_Untrusted_Script_Execution_via_Signed_Update_TOCTOUthird-party-advisory
https://github.com/sbabic/swupdate/commit/f4bd64260e233e207354d68d572b1cbc3e63689dpatch
https://github.com/sbabic/swupdateproduct

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