CVEvulnerability

CVE-2025-14963

6.2 MEDIUM Published 2026-02-24 Modified 2026-06-17 Official page ↗
Status
Undergoing Analysis
Published
2026-02-24
Last modified
2026-06-17
Assigner
[email protected]
CVSS 4.0 ([email protected])
6.2 MEDIUM — CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-20

Description

A vulnerability identified in the HX Agent driver file fekern.sys allowed a threat actor with local user access the ability to gain elevated system privileges. Utilization of a Bring Your Own Vulnerable Driver (BYOVD) was leveraged to gain access to the critical Windows process memory lsass.exe (Local Security Authority Subsystem Service). The fekern.sys is a driver file associated with the HX Agent (used in all existing HX Agent versions). The vulnerable driver installed in a product or a system running a fully functional HX Agent is, itself, not exploitable as the product’s tamper protection restricts the ability to communicate with the driver to only the Agent’s processes.

Affected configurations

• trellix endpoint security (>= 30.0.0 <= 34.0.0) • trellix endpoint security 35.31.0-37 • trellix endpoint security 36.30.0-17

Related

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References