CVE-2025-41259

SWUpdate Untrusted Script Execution via Signed Update TOCTOU

Published Jun 3, 2026 CVSS 4.0 · 7.3 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4864-1 swupdate security update
History
Type Values Removed Values Added
First Time appeared Sbabic
Sbabic swupdate
Vendors & Products Sbabic
Sbabic swupdate
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title SWUpdate Untrusted Script Execution via Signed Update TOCTOU
Weaknesses CWE-367
References
Metrics cvssV4_0

{'score': 7.3, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
sba-research
Published
Updated
Jun 3, 2026, 12:37 PM
Reserved
Apr 16, 2025, 9:37 AM
Status
Awaiting Analysis
Published
Jun 3, 2026, 1:16 PM
Modified
Jul 22, 2026, 7:10 PM