CVE-2024-13961CWE-367CWE-59

Avast Cleanup Premium TuneupSvc Link Following Local Privilege Escalation Vulnerability

High · published May 9, 2025

CVSS v3.1
7.8
EPSS
0%
Percentile
6.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00173 · 6.4th percentile
Weaknesses
CWE-367 · Time-of-check Time-of-use (TOCTOU) Race Condition; CWE-59 · Improper Link Resolution Before File Access ('Link Following')
Published
2025-05-09T15:20Z
EPSS history
Timeline
  • 09 MAY 15:20Z
    Avast Cleanup Premium TuneupSvc Link Following Local Privilege Escalation Vulnerability
    cvelistv5