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.
Published: 2025-12-20
Score: 8.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Mon, 22 Dec 2025 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Sun, 21 Dec 2025 21:30:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft
Microsoft windows
Versa-networks
Versa-networks sase Client
Vendors & Products Microsoft
Microsoft windows
Versa-networks
Versa-networks sase Client

Sat, 20 Dec 2025 20:15:00 +0000

Type Values Removed Values Added
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.
Title Versa SASE Client for Windows < 7.9.5 Arbitrary Folder Deletion Leading to Local Privilege Escalation
Weaknesses CWE-250
CWE-367
References
Metrics cvssV4_0

{'score': 8.5, 'vector': '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'}


Subscriptions

Microsoft Windows
Versa-networks Sase Client
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2025-12-22T16:17:23.123Z

Reserved: 2025-04-15T19:15:22.581Z

Link: CVE-2025-34290

cve-icon Vulnrichment

Updated: 2025-12-22T16:17:18.592Z

cve-icon NVD

Status : Deferred

Published: 2025-12-20T20:15:50.553

Modified: 2026-04-15T00:35:42.020

Link: CVE-2025-34290

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-12-21T21:12:22Z

Weaknesses