CVE-2026-103679NVD

Vulnerability 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).

Severity Level

MEDIUM(6.5)

Published Date

Oct 1, 2026

Last Modified

Oct 5, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

0.28%Probability

Root Weakness (CWE)

CWE-416: Unknown/Unlisted Weakness ↗

Refer to the official MITRE database for detailed architectural specifications regarding this weakness.

CVSS v3.1 Base Metrics — Score 6.5 (MEDIUM)

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

ConfidentialityNone

IntegrityNone

AvailabilityHigh

Affected & Patched Versions

Affected Versions

Tnef Project Tnef <= 1.4.18

Patched Versions

Not provided by NVD for this CVE.

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