CVE-2022-4326: Trellix xAgent permission bypass vulnerability

Severity: medium (CVSS 6.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-12-16 · updated 2026-06-17
Weakness: CWE-281

Description

Improper preservation of permissions vulnerability in Trellix Endpoint Agent (xAgent) prior to V35.31.22 on Windows allows a local user with administrator privileges to bypass the product protection to uninstall the agent via incorrectly applied permissions in the removal protection functionality.

Affected products

Trellix Endpoint Security: before 35.31.22 — fixed in 35.31.22

How to fix

Upgrade to a fixed version: Trellix Endpoint Security 35.31.22. Check the vendor advisory for mitigations.

References

https://docs.trellix.com/bundle/xagent_35-31-22_rn/page/UUID-73c848e7-6107-fe11-d83d-b17bd5b1449c.html
https://docs.trellix.com/bundle/xagent_35-31-22_rn/page/UUID-73c848e7-6107-fe11-d83d-b17bd5b1449c.html

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