{"cve":"CVE-2010-4344","nvd":{"published":"2010-12-14T16:00:04.163","modified":"2026-06-16T23:24:36.107","status":"Analyzed","description":"Heap-based buffer overflow in the string_vformat function in string.c in Exim before 4.70 allows remote attackers to execute arbitrary code via an SMTP session that includes two MAIL commands in conjunction with a large message containing crafted headers, leading to improper rejection logging.","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-787"],"references":["ftp://ftp.exim.org/pub/exim/ChangeLogs/ChangeLog-4.70","http://atmail.com/blog/2010/atmail-6204-now-available/","http://bugs.exim.org/show_bug.cgi?id=787","http://git.exim.org/exim.git/commit/24c929a27415c7cfc7126c47e4cad39acf3efa6b","http://lists.exim.org/lurker/message/20101210.164935.385e04d0.en.html"],"products":["canonical:ubuntu_linux","debian:debian_linux","exim:exim","opensuse:opensuse"],"source":"nvd","synced_at":"2026-10-19T19:57:56.749847046+00:00"},"epss":{"cve":"CVE-2010-4344","score":0.71706,"percentile":0.99422,"date":"2026-10-31"},"kev":{"cve":"CVE-2010-4344","date_added":"2022-03-25","due_date":"2022-04-15","vendor":"Exim","product":"Exim","known_ransomware":false},"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."]}