{"cve":"CVE-2017-16931","nvd":{"published":"2017-11-23T21:29:00.390","modified":"2026-10-14T07:16:39.460","status":"Modified","description":"parser.c in libxml2 before 2.9.5 mishandles parameter-entity references because the NEXTL macro calls the xmlParserHandlePEReference function in the case of a '%' character in a DTD name.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-119"],"references":["http://xmlsoft.org/news.html","https://bugzilla.gnome.org/show_bug.cgi?id=766956","https://github.com/GNOME/libxml2/commit/e26630548e7d138d2c560844c43820b6767251e3","https://lists.debian.org/debian-lts-announce/2017/11/msg00041.html","https://www.oracle.com//security-alerts/cpujul2021.html"],"products":["xmlsoft:libxml2"],"source":"nvd","synced_at":"2026-10-19T20:47:01.408438353+00:00"},"epss":{"cve":"CVE-2017-16931","score":0.0458,"percentile":0.91563,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}