7.8

CVE-2024-13959: avg tuneup Link Following

CVSS: 7.8v3.1HighDeferred
Published 09-05-2025Last modified 09-05-2025
Open JSON

Vulnerability summary

CVE-2024-13959 is a high (CVSS 7.8) Link Following vulnerability in avg tuneup. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 12.2% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.22%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 09-05-2025
    PublishedVulnerability first disclosed.
  2. 09-05-2025
    Last modifiedVulnerability information updated.

Description

Link Following Local Privilege Escalation Vulnerability in TuneupSvc.exe in AVG TuneUp 24.2.16593.9844 on Windows allows local attackers to escalate privileges and execute arbitrary code in the context of SYSTEM via creating a symbolic link and leveraging the service to delete a directory

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

12%

Versus all other CVEs

30-day change

+0.01 pp

From 0.22% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.22%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Avg1 product

1 vendor · 1 product

References

1 links