{"id":"CVE-2026-103679","published":"2026-10-01T12:17:15.683","lastModified":"2026-10-05T14:05:23.933","description":"A flaw was found in tnef. A remote attacker could exploit this vulnerability by providing a specially crafted Transport Neutral Encapsulation Format (TNEF) file containing multiple message bodies. During extraction, improper memory management triggers a use-after-free and double-free condition, causing the application to crash and resulting in a Denial of Service (DoS).","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cwes":["CWE-416"],"vendors":["tnef project"],"products":["tnef"],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-103679","tags":["Third Party Advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2544477","tags":["Issue Tracking","Third Party Advisory"]},{"url":"https://github.com/verdammelt/tnef","tags":["Product"]}],"exploitRefs":[{"url":"https://github.com/verdammelt/tnef","tags":["Product"]}],"hasPoc":true,"ai":null}