ZDI-25-696: Avast Cleanup Premium TuneupSvc Link Following Local Privilege Escalation Vulnerability

Published Jul 29, 2025
·
Updated

This vulnerability allows local attackers to escalate privileges on affected installations of Avast Cleanup Premium. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2024-13961.

Affected Software

1 affected component
Avast Cleanup Premium

Event History

Jul 29, 2025
Advisory Published
via ZDI·05:00 AM
Data Sourced
via ZDI·05:00 AM
Description
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Frequently Asked Questions

1

What is the severity of ZDI-25-696?

ZDI-25-696 is classified as a high severity vulnerability due to the potential for privilege escalation.

2

How do I fix ZDI-25-696?

To fix ZDI-25-696, update Avast Cleanup Premium to the latest version as recommended by the vendor.

3

Who is affected by ZDI-25-696?

ZDI-25-696 affects users of Avast Cleanup Premium on systems where low-privileged code execution is possible.

4

What is the impact of exploiting ZDI-25-696?

Exploiting ZDI-25-696 allows local attackers to escalate their privileges on the affected system.

5

What should I do if I cannot update to mitigate ZDI-25-696?

If unable to update, consider restricting local access to the system to mitigate the risk from ZDI-25-696.

Contact

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