Local Privilege Escalation in Avast Cleanup Premium on Windows 10 Pro
CVE-2024-13961

7.8HIGH

Key Information:

Vendor

Avast

Status
Cleanup Premium
Vendor
CVE Published:
9 May 2025

What is CVE-2024-13961?

A local privilege escalation vulnerability exists in the TuneupSvc component of Avast Cleanup Premium. This issue allows local attackers to exploit a symbolic link and perform a TOCTTOU (time-of-check to time-of-use) attack, potentially leading to arbitrary code execution in the SYSTEM context. Users are advised to apply necessary patches and updates to mitigate the risks associated with this vulnerability.

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Deploy the Patch

Affected Version(s)

CleanUp Premium Windows 24.2.16593.17810

CleanUp Premium Windows 24.2.16593.17810

CleanUp Premium Windows 24.3.17165.19178

References

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

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Vladislav Berghici of Trend Micro Research
Zero Day Initiative
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