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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.

PUBLISHED Reserved 2025-05-09 | Published 2025-05-09 | Updated 2025-05-09 | Assigner NLOK




HIGH: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem types

CWE-59 Improper Link Resolution Before File Access ('Link Following')

CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

Product status

Default status
affected

24.2.16593.17810
affected

24.3.17165.19178
unaffected

Credits

Vladislav Berghici of Trend Micro Research finder

Zero Day Initiative reporter

References

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

cve.org (CVE-2024-13961)

nvd.nist.gov (CVE-2024-13961)

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Data based on CVE®. Copyright © 1999-2025, The MITRE Corporation. All rights reserved.