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.
Scores
CVSS v3
7.8
EPSS
0.0006
EPSS Percentile
19.2%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-367
CWE-59
Status
published
Products (2)
AVG/TuneUp
23.4
AVG/TuneUp
24.1 31.7.2024
Published
May 09, 2025
Tracked Since
Feb 18, 2026