HOMEVULNERABILITIESCVE-2017-6307
HIGH

CVE-2017-6307

CWE-787Published: February 24, 2017· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official Description

An issue was discovered in tnef before 1.4.13. Two OOB Writes have been identified in src/mapi_attr.c:mapi_attr_read(). These might lead to invalid read and write operations, controlled by an attacker.

NVD Source

Technical Analysis

CVE-2017-6307 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Vendors & Products

Debian1 product(s)
debian linux
tnef_project1 product(s)
tnef
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/verdammelt/tnef/blob/master/ChangeLog
PATCHhttps://github.com/verdammelt/tnef/commit/1a17af1ed0c791aec44dbdc9eab91218cc1e335a
PATCHhttps://www.x41-dsec.de/lab/advisories/x41-2017-004-tnef/
PATCHhttps://github.com/verdammelt/tnef/blob/master/ChangeLog
PATCHhttps://github.com/verdammelt/tnef/commit/1a17af1ed0c791aec44dbdc9eab91218cc1e335a
PATCHhttps://www.x41-dsec.de/lab/advisories/x41-2017-004-tnef/
ADVISORYhttp://www.debian.org/security/2017/dsa-3798
ADVISORYhttp://www.securityfocus.com/bid/96427
ADVISORYhttps://security.gentoo.org/glsa/201708-02
ADVISORYhttp://www.debian.org/security/2017/dsa-3798
ADVISORYhttp://www.securityfocus.com/bid/96427
ADVISORYhttps://security.gentoo.org/glsa/201708-02

All References (12)

→
http://www.debian.org/security/2017/dsa-3798Third Party Advisory
→
http://www.securityfocus.com/bid/96427Third Party Advisory · VDB Entry
→
https://github.com/verdammelt/tnef/blob/master/ChangeLogPatch · Release Notes · Third Party Advisory
→
https://github.com/verdammelt/tnef/commit/1a17af1ed0c791aec44dbdc9eab91218cc1e335aIssue Tracking · Patch · Third Party Advisory
→
https://security.gentoo.org/glsa/201708-02Third Party Advisory
→
https://www.x41-dsec.de/lab/advisories/x41-2017-004-tnef/Patch · Third Party Advisory
→
http://www.debian.org/security/2017/dsa-3798Third Party Advisory
→
http://www.securityfocus.com/bid/96427Third Party Advisory · VDB Entry
→
https://github.com/verdammelt/tnef/blob/master/ChangeLogPatch · Release Notes · Third Party Advisory
→
https://github.com/verdammelt/tnef/commit/1a17af1ed0c791aec44dbdc9eab91218cc1e335aIssue Tracking · Patch · Third Party Advisory
→
https://security.gentoo.org/glsa/201708-02Third Party Advisory
→
https://www.x41-dsec.de/lab/advisories/x41-2017-004-tnef/Patch · Third Party Advisory

Quick Facts

CVE IDCVE-2017-6307
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-787
CISA KEVNo
Affected2 vendor(s)
PublishedFeb 24, 2017

Related CVEs (CWE-787)

CVE-2026-4746
10.0
CVE-2004-0978
10.0
CVE-2009-2466
10.0
CVE-2026-42369
10.0
CVE-2002-2227
10.0
CVE-2011-1807
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2017-6307 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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