CVE-2025-3771: Trellix System Information Reporter

High severity, CVSS 7.1. EPSS: 0.2% chance of exploitation in the next 30 days.

A path or symbolic link manipulation vulnerability in SIR 1.0.3 and prior versions allows an authenticated non-admin local user to overwrite system files with SIR backup files, which can potentially cause a system crash. This was achieved by adding a malicious entry to the registry under the Trellix SIR registry folder or via policy or with a junction symbolic link to files that the user would not normally have permission to acces

Affected products

• Trellix System Information Reporter: up to and including 1.0.3

Published 2025-06-26. Last modified 2026-06-17.