CVE-2025-34290 (GCVE-0-2025-34290)

Vulnerability from cvelistv5 – Published: 2025-12-20 20:01 – Updated: 2025-12-22 16:17
VLAI
Title
Versa SASE Client for Windows < 7.9.5 Arbitrary Folder Deletion Leading to Local Privilege Escalation
Summary
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.
Severity
8.5 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-22 16:17 UTC
CWE
  • CWE-250 - Execution with Unnecessary Privileges
  • CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 5277 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Versa Networks SASE Client for Windows Affected: 7.8.7 , < 7.9.5 (semver)
guessed Create a notification for this product.
Credits
Eduardo Pérez Malumbres Cervera from KPMG Spain
Show details on NVD website
To clipboard 

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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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