{"cve":{"cve_id":"CVE-2010-4344","is_kev":true,"kev_date_added":"2022-03-25","kev_vendor_project":"Exim","kev_product":"Exim","kev_vulnerability_name":"Exim Heap-Based Buffer Overflow Vulnerability","kev_short_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.","kev_required_action":"Apply updates per vendor instructions.","kev_due_date":"2022-04-15","kev_known_ransomware":false,"kev_notes":"https://nvd.nist.gov/vuln/detail/CVE-2010-4344","kev_cwes":["CWE-119"],"epss_score":0.71794,"epss_percentile":0.99345,"epss_as_of":"2026-06-23","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 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