{"id":"CVE-2026-103678","title":"A flaw was found in tnef","summary":"A flaw was found in tnef. An attacker can exploit this vulnerability by providing a specially crafted file containing uncompressed Rich Text Format (RTF) data. Because the application fails to properly validate input buffer boundaries be…","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L","cwe":["CWE-125"],"product":"tnef","affected":["tnef <= 1.4.18"],"published":"2026-10-01","updated":"2026-10-01","sourceUpdated":"2026-10-01T13:02:09.610","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-103678","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-103678","label":"patrick@puiterwijk.org"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2544476","label":"patrick@puiterwijk.org"},{"url":"https://github.com/verdammelt/tnef","label":"patrick@puiterwijk.org"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-10-01T12:43:54.810Z","slug":"CVE-2026-103678","body":"## Overview\n\nA flaw was found in tnef. An attacker can exploit this vulnerability by providing a specially crafted file containing uncompressed Rich Text Format (RTF) data. Because the application fails to properly validate input buffer boundaries before copying data in get_rtf_data_from_buf(), reading beyond the allocated memory occurs. This flaw can cause the application to crash, leading to a Denial of Service (DoS), or leak sensitive memory contents into extracted output files.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}