{"id":"CVE-2023-39615","title":"Xmlsoft Libxml2 v2.11.0 was discovered to contain an out-of-bounds read via the xmlSAX2StartElement() function at /libxml2/SAX2.c","summary":"Xmlsoft Libxml2 v2.11.0 was discovered to contain an out-of-bounds read via the xmlSAX2StartElement() function at /libxml2/SAX2.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via supplying a crafted XML file. N…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cwe":["CWE-119"],"vendor":"xmlsoft","product":"libxml2","affected":["libxml2 = 2.11.0"],"published":"2023-08-29","updated":"2026-10-15","sourceUpdated":"2026-10-15T00:16:36.337","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2023-39615","references":[{"url":"https://gitlab.gnome.org/GNOME/libxml2/-/issues/535","label":"cve@mitre.org"},{"url":"https://gitlab.gnome.org/GNOME/libxml2/-/issues/535","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2025/02/msg00028.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-341067.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-398330.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-556635.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-784301.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.00755,"epssPercentile":0.54108,"ingestedAt":"2026-10-15T01:08:04.205Z","exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2024-10-02T13:25:30.978898Z"},"slug":"CVE-2023-39615","body":"## Overview\n\nXmlsoft Libxml2 v2.11.0 was discovered to contain an out-of-bounds read via the xmlSAX2StartElement() function at /libxml2/SAX2.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via supplying a crafted XML file. NOTE: the vendor's position is that the product does not support the legacy SAX1 interface with custom callbacks; there is a crash even without crafted input.\n\n## Affected\n\n- `libxml2 = 2.11.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":35.8,"likelihood":0.2,"exploitation":12,"ransomware":0},"changes":[{"seq":222005,"id":"CVE-2023-39615","ts":1792039736942,"field":"exploit_available","old":"false","new":"true"}]}