vuln-cve/data/2025/14xxx/CVE-2025-14963.json

{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-14963",
        "assignerOrgId": "01626437-bf8f-4d1c-912a-893b5eb04808",
        "state": "PUBLISHED",
        "assignerShortName": "trellix",
        "dateReserved": "2025-12-19T10:32:38.416Z",
        "datePublished": "2026-02-24T17:11:06.812Z",
        "dateUpdated": "2026-02-26T14:44:08.034Z"
    },
    "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": "<span style=\"background-color: rgb(255, 255, 255);\">A vulnerability identified in the HX Agent driver file </span>fekern.sys<span style=\"background-color: rgb(255, 255, 255);\">&nbsp;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 </span>lsass.exe<span style=\"background-color: rgb(255, 255, 255);\">&nbsp;(Local Security Authority Subsystem Service). The</span><em>&nbsp;</em>fekern.sys<span style=\"background-color: rgb(255, 255, 255);\">&nbsp;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</span>&nbsp;<span style=\"background-color: rgb(255, 255, 255);\">as the product’s tamper protection restricts the ability to communicate with the driver to only the Agent’s processes.</span>\n\n<br>"
                        }
                    ],
                    "value": "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."
                }
            ],
            "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": {
                "orgId": "01626437-bf8f-4d1c-912a-893b5eb04808",
                "shortName": "trellix",
                "dateUpdated": "2026-02-26T07:36:15.415Z"
            },
            "references": [
                {
                    "url": "https://thrive.trellix.com/s/article/000015100"
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
            },
            "x_generator": {
                "engine": "Vulnogram 0.5.0"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2025-14963",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2026-02-25T04:56:08.220547Z"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-02-26T14:44:08.034Z"
                }
            }
        ]
    }
}