{"cve":"CVE-2025-67896","nvd":{"published":"2025-12-14T04:15:50.287","modified":"2026-10-14T13:10:00.187","status":"Analyzed","description":"Exim before 4.99.1, with certain non-default rate-limit configurations, allows a remote heap-based buffer overflow because database records are cast directly to internal structures without validation.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-122"],"references":["https://exim.org/static/doc/security/","https://exim.org/static/doc/security/EXIM-Security-2025-12-09.1/report.txt","https://www.openwall.com/lists/oss-security/2025/12/11/2","http://www.openwall.com/lists/oss-security/2025/12/14/1","http://www.openwall.com/lists/oss-security/2025/12/18/3"],"products":["exim:exim"],"source":"nvd","synced_at":"2026-10-19T22:17:07.138532058+00:00"},"epss":{"cve":"CVE-2025-67896","score":0.0047,"percentile":0.40363,"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."]}