Read the docs
TI-2025-27505 Aliases CVE-2025-41259GHSA-pmf3-4g49-qvxm

SWUpdate Untrusted Script Execution via Signed Update TOCTOU

Priority HIGH 67CWE-367Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00101 0th percentileScored 2026-11-07
Fix Fixed SWUpdate (sbabic): 2026.05

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
sbabicSWUpdatebefore 2026.052026.05Patch availableCNA
  • SWUpdate Vendorsbabic Affected before 2026.05 Fixed in 2026.05 Patch available CNA

Remediation

  • Fix · CNA SWUpdate (sbabic) Fixed in 2026.05

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-41259
  2. 2026-10-03 Alias added: GHSA-pmf3-4g49-qvxm

References

Patch 1

Advisory 1

Other 1

  • TI-2026-71034 Improper certificate validation in SWUpdate lets forged updates install CVSS 4.0CRITICAL 9.2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences