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2 vulnerabilities found for Endpoint HX Agent (xAgent) by Trellix

CVE-2025-14963 (GCVE-0-2025-14963)

Vulnerability from nvd – Published: 2026-02-24 17:11 – Updated: 2026-02-25 16:12
VLAI?
Summary
A vulnerability identified in the Trellix 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; a driver file associated with Trellix HX Agent (used in all existing HX Agent versions).   The vulnerable driver installed in a product or a system running 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.
Severity ?
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
CWE
  • CWE-20 - Improper Input Validation
Assigner
References
Impacted products
Vendor Product Version
Trellix Endpoint HX Agent (xAgent) Affected: 36.30.0-17, 35.31.0-37, 34.x, 33.x and 30.x
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-14963 (GCVE-0-2025-14963)

Vulnerability from cvelistv5 – Published: 2026-02-24 17:11 – Updated: 2026-02-25 16:12
VLAI?
Summary
A vulnerability identified in the Trellix 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; a driver file associated with Trellix HX Agent (used in all existing HX Agent versions).   The vulnerable driver installed in a product or a system running 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.
Severity ?
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
CWE
  • CWE-20 - Improper Input Validation
Assigner
References
Impacted products
Vendor Product Version
Trellix Endpoint HX Agent (xAgent) Affected: 36.30.0-17, 35.31.0-37, 34.x, 33.x and 30.x
Create a notification for this product.
Show details on NVD website
To clipboard 

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