CVE-2025-49795
Full vulnerability record from the local CVENow database.
Description
A NULL pointer dereference vulnerability was found in libxml2 when processing XPath XML expressions. This flaw allows an attacker to craft a malicious XML input to libxml2, leading to a denial of service.
Severity
HIGH
CVSS score
7.5
(v3.1)
Vulnerability status
Deferred
Source identifier
Published
2025-06-16 16:15:19.203000
Last modified
2026-11-04 22:17:36.903000
View original CVE JSON
{
"id": "CVE-2025-49795",
"sourceIdentifier": "[email protected]",
"published": "2025-06-16T16:15:19.203",
"lastModified": "2026-11-04T22:17:36.903",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A NULL pointer dereference vulnerability was found in libxml2 when processing XPath XML expressions. This flaw allows an attacker to craft a malicious XML input to libxml2, leading to a denial of service."
},
{
"lang": "es",
"value": "Se detectó una vulnerabilidad de desreferencia de puntero nulo en libxml2 al procesar expresiones XML XPath. Esta falla permite a un atacante manipular una entrada XML maliciosa en libxml2, lo que provoca una denegación de servicio."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "GNOME",
"product": "libxml2",
"defaultStatus": "unaffected",
"repo": "https://gitlab.gnome.org/GNOME/libxml2/",
"versions": [
{
"version": "2.10.0",
"lessThan": "2.14.5",
"versionType": "semver",
"status": "affected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 10",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "libxml2",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.0"
],
"versions": [
{
"version": "0:2.12.5-7.el10_0",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat JBoss Core Services 2.4.62.SP2",
"defaultStatus": "unaffected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "libxml2",
"cpes": [
"cpe:/a:redhat:jboss_core_services:1.0"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Hardened Images",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "libxml2-main",
"cpes": [
"cpe:/a:redhat:hummingbird:1"
],
"versions": [
{
"version": "2.15.2-0.3.hum1",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 6",
"defaultStatus": "unknown",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "libxml2",
"cpes": [
"cpe:/o:redhat:rhel_els:6"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 7",
"defaultStatus": "unaffected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "libxml2",
"cpes": [
"cpe:/o:redhat:rhel_els:7"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8",
"defaultStatus": "unaffected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "libxml2",
"cpes": [
"cpe:/a:redhat:enterprise_linux:8"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9",
"defaultStatus": "unaffected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "libxml2",
"cpes": [
"cpe:/a:redhat:enterprise_linux:9"
]
}
]
},
{
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"affectedData": [
{
"vendor": "Siemens",
"product": "RUGGEDCOM RST2428P",
"defaultStatus": "unknown",
"versions": [
{
"version": "0",
"lessThan": "V4.0",
"versionType": "custom",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2025-06-16T15:30:23.392664Z",
"id": "CVE-2025-49795",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-825"
}
]
}
],
"references": [
{
"url": "https://access.redhat.com/errata/RHSA-2025:10630",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2025:19020",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:7519",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/security/cve/CVE-2025-49795",
"source": "[email protected]"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2372379",
"source": "[email protected]"
},
{
"url": "https://gitlab.gnome.org/GNOME/libxml2/-/issues/932",
"source": "[email protected]"
},
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-253495.html",
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
}
]
}