Disclosure summary
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).
Source-reported weakness categories
CWE-416
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2026-103679
Open original source · Updated Oct 05, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| tnef_project | tnef | * {"versionEndIncluding":"1.4.18"} |
Original records & references
- NIST NVD record
- CVE Program record
- access.redhat.com — Third Party Advisory
- bugzilla.redhat.com — Issue Tracking, Third Party Advisory
- github.com — Product
PUBLISHED 2026-10-01T08:17:15-04:00
MODIFIED 2026-10-05T10:05:23-04:00
INGESTED 2026-10-06T11:45:14-04:00