{"id":"CVE-2024-34459","title":"An issue was discovered in xmllint (from libxml2) before 2.11.8 and 2.12.x before 2.12.7","summary":"An issue was discovered in xmllint (from libxml2) before 2.11.8 and 2.12.x before 2.12.7. Formatting error messages with xmllint --htmlout can result in a buffer over-read in xmlHTMLPrintFileContext in xmllint.c.","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","cwe":["CWE-122"],"vendor":"xmlsoft","product":"libxml2","affected":["libxml2 < 2.11.8","libxml2 >= 2.12.0, < 2.12.7"],"patched":["libxml2 2.12.7"],"published":"2024-05-14","updated":"2026-10-15","sourceUpdated":"2026-10-15T01:17:45.877","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2024-34459","references":[{"url":"https://gitlab.gnome.org/GNOME/libxml2/-/issues/720","label":"cve@mitre.org"},{"url":"https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.11.8","label":"cve@mitre.org"},{"url":"https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.12.7","label":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5HVUXKYTBWT3G5DEEQX62STJQBY367NL/","label":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/INKSSLW5VMZIXHRPZBAW4TJUX5SQKARG/","label":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VRDJCNQP32LV56KESUQ5SNZKAJWSZZRI/","label":"cve@mitre.org"},{"url":"https://gitlab.gnome.org/GNOME/libxml2/-/issues/720","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.11.8","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.12.7","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2025/07/msg00014.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5HVUXKYTBWT3G5DEEQX62STJQBY367NL/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/INKSSLW5VMZIXHRPZBAW4TJUX5SQKARG/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VRDJCNQP32LV56KESUQ5SNZKAJWSZZRI/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5HVUXKYTBWT3G5DEEQX62STJQBY367NL/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/INKSSLW5VMZIXHRPZBAW4TJUX5SQKARG/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VRDJCNQP32LV56KESUQ5SNZKAJWSZZRI/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-398330.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.018,"epssPercentile":0.78066,"ingestedAt":"2026-10-15T03:30:12.677Z","exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"partial","timestamp":"2024-08-22T17:18:58.922791Z"},"slug":"CVE-2024-34459","body":"## Overview\n\nAn issue was discovered in xmllint (from libxml2) before 2.11.8 and 2.12.x before 2.12.7. Formatting error messages with xmllint --htmlout can result in a buffer over-read in xmlHTMLPrintFileContext in xmllint.c.\n\n## Affected\n\n- `libxml2 < 2.11.8`\n- `libxml2 >= 2.12.0, < 2.12.7`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `libxml2 2.12.7`","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":41.3,"likelihood":0.4,"exploitation":12,"ransomware":0},"changes":[{"seq":222011,"id":"CVE-2024-34459","ts":1792039793162,"field":"exploit_available","old":"false","new":"true"}]}