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No exploitation reportedFix available

CVE-2018-14403

No exploitation reported by the sources we read.

  • Published2018-07-19
  • WeaknessCWE-704

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2018-07-1905:29CVE publishedNVD

Versions per branch

NVD
Techsmith mp4v2
BranchAffectedFixed in
2.0= 2.0.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • libmp4v2Mageia:7all versions · fixed in 2.1.0-0.4.mga7
  • mp4v2Ubuntu:18.04:LTSall versions · no fixed version listed
  • mp4v2Ubuntu:16.04:LTSall versions · no fixed version listed

Vendor advisories

  • CVE-2018-14403 Red Hat Product Security

    libmp4v2: Out-of-bounds read in MP4NameFirstMatches in mp4util.cpp

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2018-07-19
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-cq9c-6m4q-fv48

Frequently asked questions

What is CVE-2018-14403?

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.

Is CVE-2018-14403 actively exploited?

Active exploitation of CVE-2018-14403 has not been confirmed. Its EPSS score was 2.9% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-14403?

CVE-2018-14403 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record