Uninstaller Component Vulnerability in CCleaner for Windows
CVE-2026-12410

7.8HIGH

Key Information:

Status
Vendor
CVE Published:
5 August 2026

What is CVE-2026-12410?

A vulnerability exists in the Uninstaller component of CCleaner for Windows, allowing low-privileged users to achieve SYSTEM level privileges. This occurs when a symlink or junction is created during the application's uninstallation, which CCleaner inadvertently follows while deleting the application's data folder with elevated permissions. As a result, attackers can exploit this behavior to escalate their privileges, potentially compromising system integrity.

Affected Version(s)

CCleaner Windows 0 < 7.10.1464

References

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

Anonymous working with TrendAI Zero Day Initiative
.