CVE-2025-14963
Quick assessment
Affected
Trellix Endpoint HX Agent (xAgent)
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Trellix Endpoint Security HX是美国Trellix公司的一款端点检测和响应软件。 Trellix Endpoint Security HX存在安全漏洞，该漏洞源于fekern.sys驱动文件存在漏洞，可能导致权限提升。
Possible ATT&CK Techniques 3 AI
T1003 · OS Credential Dumping T1055 · Process Injection T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2025-14963
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Trellix Endpoint Security HX 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Trellix Endpoint Security HX是美国Trellix公司的一款端点检测和响应软件。 Trellix Endpoint Security HX存在安全漏洞，该漏洞源于fekern.sys驱动文件存在漏洞，可能导致权限提升。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Trellix | Endpoint HX Agent (xAgent) | 36.30.0-17, 35.31.0-37, 34.x, 33.x and 30.x | - |
|
II. Public POCs for CVE-2025-14963
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
V. Comments for CVE-2025-14963
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