{"cve":"CVE-2015-6525","nvd":{"published":"2015-08-24T14:59:14.133","modified":"2026-06-17T00:31:00.843","status":"Modified","description":"Multiple integer overflows in the evbuffer API in Libevent 2.0.x before 2.0.22 and 2.1.x before 2.1.5-beta allow context-dependent attackers to cause a denial of service or possibly have other unspecified impact via \"insanely large inputs\" to the (1) evbuffer_add, (2) evbuffer_prepend, (3) evbuffer_expand, (4) exbuffer_reserve_space, or (5) evbuffer_read function, which triggers a heap-based buffer overflow or an infinite loop.  NOTE: this identifier was SPLIT from CVE-2014-6272 per ADT3 due to different affected versions.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-189"],"references":["http://archives.seul.org/libevent/users/Jan-2015/msg00010.html","http://www.debian.org/security/2015/dsa-3119","http://archives.seul.org/libevent/users/Jan-2015/msg00010.html","http://www.debian.org/security/2015/dsa-3119"],"products":["debian:debian_linux","libevent_project:libevent"],"source":"nvd","synced_at":"2026-10-19T20:37:45.466985407+00:00"},"epss":{"cve":"CVE-2015-6525","score":0.04813,"percentile":0.91968,"date":"2026-10-31"},"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."]}