CVE-2024-13961

Avast Cleanup Premium TuneupSvc Link Following Local Privilege Escalation Vulnerability

State: Published
Severity: 7.8 High
Published: May 9, 2025
Updated: May 9, 2025
Reserved: May 9, 2025

Description

Link Following Local Privilege Escalation Vulnerability in TuneupSvc in Avast Cleanup Premium Version 24.2.16593.17810 on Windows 10 Pro x64 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.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	NLOK

Weaknesses

CWE-59 Improper Link Resolution Before File Access ('Link Following')
CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

Affected Products

Product	Versions
CleanUp PremiumAvast	24.2.16593.17810Affected 24.3.17165.19178Not affected

References

https://www.gendigital.com/us/en/contact-us/security-advisories/

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