What is CVE-2017-6308?

CVE-2017-6308 is a high-severity vulnerability in Tnef Project, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2017-02-24.

How severe is CVE-2017-6308?

High severity. CVSS v3 base score is 7.8 out of 10.

Integer overflow in Tnef Project

CVE-2017-6308

An issue was discovered in tnef before 1.4.13. Several Integer Overflows, which can lead to Heap Overflows, have been identified in the functions that wrap memory allocation.

Vulnerability class: Integer Overflow

Published 2017-02-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.015 (73.9th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 73.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000

Affected products

Tnef Project
Debian Linux — versions 8.0

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

github.com/verdammelt/tnef/blob/master/ChangeLog (Patch, Third Party Advisory, Release Notes)
www.securityfocus.com/bid/96427 (VDB Entry, Third Party Advisory, vdb-entry)
www.x41-dsec.de/lab/advisories/x41-2017-004-tnef/ (Patch, Third Party Advisory)
github.com/verdammelt/tnef/commit/c5044689e50039635e7700fe2472fd632ac77176 (Patch, Third Party Advisory, Issue Tracking)
www.debian.org/security/2017/dsa-3798 (vendor-advisory, Third Party Advisory)
security.gentoo.org/glsa/201708-02 (vendor-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2017-6308?: CVE-2017-6308 is a high-severity vulnerability in Tnef Project, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2017-02-24.
How severe is CVE-2017-6308?: High severity. CVSS v3 base score is 7.8 out of 10.