{"id":"CVE-2017-5644","aliases":["GHSA-78vv-qj73-h9m5"],"url":"https://o3.security/vulnerability/CVE-2017-5644","summary":"Improper Restriction of Recursive Entity References in DTDs in Apache POI","details":"Apache POI in versions prior to release 3.15 allows remote attackers to cause a denial of service (CPU consumption) via a specially crafted OOXML file, aka an XML Entity Expansion (XEE) attack.","published":"2017-03-24T14:59:00.273Z","modified":"2026-07-08T12:27:58.670075Z","cvss":{"score":5.5,"severity":"MEDIUM","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.apache.poi:poi","fixedVersion":"3.15"}],"fix":null,"references":[{"type":"WEB","url":"http://www.securityfocus.com/bid/96983"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpuoct2020.html"},{"type":"ADVISORY","url":"http://poi.apache.org/#20+March+2017+-+CVE-2017-5644+-+Possible+DOS+%28Denial+of+Service%29+in+Apache+POI+versions+prior+to+3.15"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T12:27:58.670075Z"}}