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).
History

Mon, 05 Oct 2026 14:15:00 +0000

Type Values Removed Values Added
First Time appeared Tnef Project
Tnef Project tnef
CPEs cpe:2.3:a:tnef_project:tnef:*:*:*:*:*:*:*:*
Vendors & Products Tnef Project
Tnef Project tnef

Thu, 01 Oct 2026 20:00:00 +0000

Type Values Removed Values Added
First Time appeared Verdammelt
Verdammelt tnef
Vendors & Products Verdammelt
Verdammelt tnef

Thu, 01 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 01 Oct 2026 11:45:00 +0000

Type Values Removed Values Added
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).
Title Tnef: use-after-free and double-free in get_body_files() via multi-value body extraction
Weaknesses CWE-416
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: fedora

Published: 2026-10-01T11:34:50.120Z

Updated: 2026-10-01T14:59:49.129Z

Reserved: 2026-10-01T09:06:43.923Z

Link: CVE-2026-103679

cve-icon Vulnrichment

Updated: 2026-10-01T14:59:39.739Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-01T12:17:15.683

Modified: 2026-10-05T14:05:23.933

Link: CVE-2026-103679

cve-icon Redhat

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