CVE-2024-13960 Link Following Local Privilege Escalation Vulnerability in AVG TuneUp Version 23.4

High 7.8 Published Updated

Local attackers can escalate privileges to SYSTEM and execute arbitrary code via a TOCTTOU race condition involving symbolic links in AVG TuneUp.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2024-13960?

CVE-2024-13960 is a high-severity vulnerability in AVG TuneUp, published on 9 May 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Link Following Local Privilege Escalation Vulnerability in TuneUp Service in AVG TuneUp Version 23.4 (build 15592) on Windows 10 allows local attackers to escalate privileges and execute arbitrary code in the context of SYSTEM via creating a symbolic link and leveraging a TOCTTOU (time-of-check to time-of-use) attack.

Weakness: CWE-59, CWE-367

Which versions are affected by CVE-2024-13960?

How do I fix CVE-2024-13960?

No fix has been published for CVE-2024-13960 yet. Limit exposure of the affected software until one is available.

Is CVE-2024-13960 being exploited?

There is no known exploitation of CVE-2024-13960 in the wild and no public exploit code.

Sources

Also known as GHSA-x6fj-h4wg-gc58.

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