CVE-2026-103679Tnef: use-after-free and double-free in get_body_files() via multi-value body extraction
Updated under an hour ago ()
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It affects tnef_project tnef. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-416
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- fedora
- NVD analysis
- Analyzed
- Record last updated
- Oct 1, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
tnef_project tnef tnef_project:tnef | through 1.4.18 | NVD |
References
- https://access.redhat.com/security/cve/CVE-2026-103679vdb-entry, x-refsource-redhat, third-party-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2544477issue-tracking, x-refsource-redhat, third-party-advisory
- https://github.com/verdammelt/tnefproduct
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.