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High · 8.5 CVE-2025-34290 EUVD-2025-204643GHSA-x6v7-6q76-p2cx

Versa SASE Client for Windows < 7.9.5 Arbitrary Folder Deletion Leading to Local Privilege Escalation

Published Dec 20, 2025 · Updated Dec 22, 2025 · Assigned by VulnCheck

Description

Versa SASE Client for Windows versions released between 7.8.7 and 7.9.4 contain a local privilege escalation vulnerability in the audit log export functionality. The client communicates user-controlled file paths to a privileged service, which performs file system operations without impersonating the requesting user. Due to improper privilege handling and a time-of-check time-of-use race condition combined with symbolic link and mount point manipulation, a local authenticated attacker can coerce the service into deleting arbitrary directories with SYSTEM privileges. This can be exploited to delete protected system folders such as C:\\Config.msi and subsequently achieve execution as NT AUTHORITY\\SYSTEM via MSI rollback techniques.

Affected products

VendorProductAffectedFixed
Versa Networks SASE Client for Windows 7.8.7 – < 7.9.5 7.9.5

References