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Fencer Intel
high 7.8

CVE-2017-6309 json

An issue was discovered in tnef before 1.4.13.

published 2017-02-24 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-15370

cvss
7.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 72%
public exploits
0
none known

Summary

An issue was discovered in tnef before 1.4.13. Two type confusions have been identified in the parse_file() function. These might lead to invalid read and write operations, controlled by an attacker.

Patch / fix

  • tnef Debian 14, Debian 13, Debian 12 1.4.12-1.1

debian advisories DEBIAN-CVE-2017-6309

  • tnef Ubuntu 14.04 LTS 1.4.9-1+deb8u2build0.14.04.1
  • tnef Ubuntu 16.04 LTS 1.4.9-1+deb8u2build0.16.04.1

ubuntu advisories UBUNTU-CVE-2017-6309

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-6309 updated

tnef: Multiple vulnerabilities fixed in 1.4.13

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.41% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 7.8 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.