HOMEVULNERABILITIESCVE-2018-14403
CRITICAL

CVE-2018-14403

CWE-704Published: July 19, 2018· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

MP4NameFirstMatches in mp4util.cpp in MP4v2 2.0.0 mishandles substrings of atom names, leading to use of an inappropriate data type for associated atoms. The resulting type confusion can cause out-of-bounds memory access.

NVD Source

Technical Analysis

CVE-2018-14403 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

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 9.8.

CVSS v3.1 Vector Breakdown

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

Affected Vendors & Products

techsmith1 product(s)
mp4v2
Source: NVD CPE · 1 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
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Official Patches & Advisories

ADVISORYhttp://www.openwall.com/lists/oss-security/2018/07/18/3
ADVISORYhttp://www.openwall.com/lists/oss-security/2018/07/18/3

All References (10)

→
http://www.openwall.com/lists/oss-security/2018/07/18/3Exploit · Mailing List · Third Party Advisory
→
https://github.com/enzo1982/mp4v2/releases/tag/v2.1.0
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6YCHVOYPIBGM5HYUMQ77KZH2IHSITKVE/
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRSO2IMK6P7MOIZWGWKONPIEHKBA7WL3/
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GISUIWPKBWPXORUFNWBGFTKQS7UUVUC4/
→
http://www.openwall.com/lists/oss-security/2018/07/18/3Exploit · Mailing List · Third Party Advisory
→
https://github.com/enzo1982/mp4v2/releases/tag/v2.1.0
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6YCHVOYPIBGM5HYUMQ77KZH2IHSITKVE/
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRSO2IMK6P7MOIZWGWKONPIEHKBA7WL3/
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GISUIWPKBWPXORUFNWBGFTKQS7UUVUC4/

Quick Facts

CVE IDCVE-2018-14403
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-704
CISA KEVNo
Affected1 vendor(s)
PublishedJul 19, 2018

Related CVEs (CWE-704)

CVE-2015-3120
10.0
CVE-2018-15981
9.8
CVE-2017-9183
9.8
CVE-2025-41648
9.8
CVE-2016-7979
9.8
CVE-2024-5436
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-14403 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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