{"cve":"CVE-2022-37451","nvd":{"published":"2022-08-06T18:15:08.967","modified":"2026-06-17T04:55:06.917","status":"Modified","description":"Exim before 4.96 has an invalid free in pam_converse in auths/call_pam.c because store_free is not used after store_malloc.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-763"],"references":["https://cwe.mitre.org/data/definitions/762.html","https://github.com/Exim/exim/commit/51be321b27825c01829dffd90f11bfff256f7e42","https://github.com/Exim/exim/compare/exim-4.95...exim-4.96","https://github.com/Exim/exim/wiki/EximSecurity","https://github.com/ivd38/exim_invalid_free"],"products":["exim:exim","fedoraproject:fedora"],"source":"nvd","synced_at":"2026-10-19T21:34:18.502168378+00:00"},"epss":{"cve":"CVE-2022-37451","score":0.03292,"percentile":0.88495,"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."]}