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CVE-2017-6307

23
FAUCET Score

CVE-2017-6307 is a high-severity out-of-bounds write vulnerability (CWE-787) in tnef versions prior to 1.4.13, specifically within the mapi_attr_read() function. This flaw could allow an unauthenticated attacker to achieve arbitrary code execution or cause a denial of service through user interaction, as indicated by its CVSS score of 7.8. Despite its high severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.4.12CPE matchmatch criteria
cpe:2.3:a:tnef_project:tnef:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.41%
Probability of exploitation in next 30 days
EPSS Percentile
69.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0141 is in the 68th percentile among its peer group of 11,616 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / verdammelt/tnef/blob/master/ChangeLog
PatchRelease NotesThird Party Advisory
github.com / verdammelt/tnef/commit/1a17af1ed0c791aec44dbdc9eab91218cc1e335a
Issue TrackingPatchThird Party Advisory
security.gentoo.org / glsa/201708-02
Third Party Advisory
x41-dsec.de / lab/advisories/x41-2017-004-tnef
PatchThird Party Advisory
debian.org / security/2017/dsa-3798
Third Party Advisory
securityfocus.com / bid/96427
Third Party AdvisoryVDB Entry