CVE-2026-103679

mediumpriority · track · 0EPSS 0.003 · 20 %ileUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.28% (20th) EPSS

CVSS 6.5 · medium

Is it mine?

1 products

Check your exposure

Who says so?

1 sources

nvd

EPSS · scored 2026-10-23

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).

cvss

Technical severity, 0–10. One row per scoring source.

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:Hsecondary · patrick@puiterwijk.orgexploitability 2.8 · impact 3.6

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-416US

affected products (1)

Products and version ranges known to be affected.

tnef project tnef≤ 1.4.18nvdUScpe:2.3:a:tnef_project:tnef:*:*:*:*:*:*:*:*

sources

Which sources assert this record, and when.

nvd NVD CVE.org MITRE

published 2026-10-01modified 2026-10-05

references (3) nvd

External citations — patches, advisories, analysis.

https://access.redhat.com/security/cve/CVE-2026-103679Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2544477Issue TrackingThird Party Advisory
https://github.com/verdammelt/tnefProduct

scry

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