{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Endpoint HX Agent (xAgent)",
          "vendor": "Trellix",
          "versions": [
            {
              "status": "affected",
              "version": "36.30.0-17, 35.31.0-37, 34.x, 33.x and 30.x"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eA 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\u003c/span\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e fekern.sys; \u003c/span\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003ea driver file associated with Trellix HX Agent (used in all existing HX Agent versions).  \u0026nbsp; The vulnerable driver installed in a product or a system running fully functional HX Agent is, itself, not exploitable\u003c/span\u003e \u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eas the product\u2019s tamper protection restricts the ability to communicate with the driver to only the agent\u2019s processes.\u003c/span\u003e\u003cbr\u003e"
            }
          ],
          "value": "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).  \u00a0 The vulnerable driver installed in a product or a system running fully functional HX Agent is, itself, not exploitable as the product\u2019s tamper protection restricts the ability to communicate with the driver to only the agent\u2019s processes."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-30",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-30: Hijacking a Privileged Thread of Execution"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "LOCAL",
            "baseScore": 6.2,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "PROOF_OF_CONCEPT",
            "privilegesRequired": "HIGH",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-20",
              "description": "CWE-20 Improper Input Validation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-24T17:11:06.812Z",
        "orgId": "01626437-bf8f-4d1c-912a-893b5eb04808",
        "shortName": "trellix"
      },
      "references": [
        {
          "url": "https://thrive.trellix.com/s/article/000015100"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "x_generator": {
        "engine": "Vulnogram 0.5.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "01626437-bf8f-4d1c-912a-893b5eb04808",
    "assignerShortName": "trellix",
    "cveId": "CVE-2025-14963",
    "datePublished": "2026-02-24T17:11:06.812Z",
    "dateReserved": "2025-12-19T10:32:38.416Z",
    "dateUpdated": "2026-02-24T17:11:06.812Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}