medium6.5
CVE-2026-103679
A flaw was found in tnef.
Impact
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).
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Tnef Project | Tnef | through 1.4.18 |