CVE-2024-13944: Avast Cleanup

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

Link Following Local Privilege Escalation Vulnerability in NortonUtilitiesSvc in Norton Utilities Ultimate Version 24.2.16862.6344 on Windows 10 Pro x64 allows local attackers to escalate privileges and execute arbitrary code in the context of SYSTEM via the creation of a symbolic link and leveraging a TOCTTOU (time-of-check to time-of-use) attack.

Affected products

• Avast Cleanup: up to and including 24.3.17165.19178
• Avg Tuneup: up to and including 24.3.17165.10564
• Norton Norton Utilities Ultimate: up to and including 24.3.17165.6812

Published 2025-05-09. Last modified 2026-06-17.