{
  "threat_severity" : "Important",
  "public_date" : "2025-06-11T00:00:00Z",
  "bugzilla" : {
    "description" : "libxml: Null pointer dereference leads to Denial of service (DoS)",
    "id" : "2372379",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2372379"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-825",
  "details" : [ "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.", "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." ],
  "statement" : "This vulnerability marked as Important rather than Moderate due to its triggerability through untrusted input and impact on availability in a widely-used XML processing library like libxml2, which is often embedded in system-level and server-side applications. Although it is \"just\" a NULL pointer dereference—typically classified as a DoS—the context significantly elevates its severity. libxml2 frequently operates in environments that parse external XML content, such as web services, security scanners, and document processors. A crafted XML exploiting malformed XPath in Schematron schemas can reliably crash the application without requiring special privileges or user interaction.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "release_date" : "2025-07-08T00:00:00Z",
    "advisory" : "RHSA-2025:10630",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10.0",
    "package" : "libxml2-0:2.12.5-7.el10_0"
  }, {
    "product_name" : "Red Hat JBoss Core Services 2.4.62.SP2",
    "release_date" : "2025-10-27T00:00:00Z",
    "advisory" : "RHSA-2025:19020",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1",
    "package" : "libxml2"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Out of support scope",
    "package_name" : "libxml2",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "libxml2",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "libxml2",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Not affected",
    "package_name" : "libxml2",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2025-49795\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-49795" ],
  "name" : "CVE-2025-49795",
  "mitigation" : {
    "value" : "Mitigation is either unavailable or does not meet Red Hat Product Security standards for usability, deployment, applicability, or stability.",
    "lang" : "en:us"
  },
  "csaw" : false
}