{"id":"CVE-2025-49795","title":"A NULL pointer dereference vulnerability was found in libxml2 when processing XPath XML expressions","summary":"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":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-825"],"vendor":"GNOME","product":"libxml2","affected":["libxml2 >= 2.10.0 < 2.14.5","libxml2 (all versions)","libxml2-main (all versions)","libxml2","libxml2","libxml2","libxml2"],"published":"2025-06-16","updated":"2026-09-18","sourceUpdated":"2026-09-18T18:17:03.603","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-49795","references":[{"url":"https://access.redhat.com/errata/RHSA-2025:10630","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:19020","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:7519","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2025-49795","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2372379","label":"secalert@redhat.com"},{"url":"https://gitlab.gnome.org/GNOME/libxml2/-/issues/932","label":"secalert@redhat.com"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-253495.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-49795.json"},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-49795"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-49795"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00592,"epssPercentile":0.46997,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2025-06-16T15:30:23.392664Z"},"ingestedAt":"2026-06-29T13:24:34.369Z","patched":["enterprise_linux_appstream_v_10","enterprise_linux_baseos_v_10","enterprise_linux_codeready_linux_builder_v_10","hardened_images"],"slug":"CVE-2025-49795","body":"## Overview\n\nA 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **RHSA-2025:10630** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux BaseOS (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) · released 2025-07-08 · [advisory](https://access.redhat.com/errata/RHSA-2025:10630)\n- **RHSA-2026:7519** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-04-10 · [advisory](https://access.redhat.com/errata/RHSA-2026:7519)\n- **Red Hat VEX** · Important · affected: Red Hat Enterprise Linux 6 · no fix planned: Red Hat Enterprise Linux 6 · updated 2026-09-18 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-49795.json)","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}