CVE-2025-34290 | THREATINT

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 Reserved 2025-04-15 | Published 2025-12-20 | Updated 2025-12-22 | Assigner VulnCheck

HIGH: 8.5CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-250 Execution with Unnecessary Privileges

CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

Product status

Default status

unaffected

7.8.7 (semver) before 7.9.5

affected

Credits

Eduardo Pérez Malumbres Cervera from KPMG Spain finder

References

security-portal.versa-networks.com/...421e33d03aafc8e5bdaf21 vendor-advisory patch

www.vulncheck.com/...-arbitrary-file-deletion-leading-to-lpe third-party-advisory

cve.org (CVE-2025-34290)

nvd.nist.gov (CVE-2025-34290)

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