MP4NameFirstMatches in mp4util.cpp in MP4v2 2.0.0 mishandles substrings of atom names…
Priority MEDIUM 47CWE-704Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-704 and the CVSS impact.
Summary
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.
Why it matters now
EPSS 0.02907 87th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2018-14403
- 2026-10-03 Alias added: GHSA-cq9c-6m4q-fv48
References
More Techsmith Mp4v2 vulnerabilities
- TI-2018-10158 A double free exists in the MP4StringProperty class in mp4property.cpp in MP4v2 2.0.0. CVSS 3.0CRITICAL 9.8
- TI-2018-10359 MP4Integer32Property::Read in atom_avcC.cpp in MP4v2 2.1.0 allows remote attackers to… CVSS 3.0HIGH 8.8
- TI-2018-10314 MP4Atom::factory in mp4atom.cpp in MP4v2 2.0.0 incorrectly uses the MP4ItemAtom data type… CVSS 3.0HIGH 8.8
- TI-2018-10270 In MP4v2 2.0.0, there is an integer overflow (with resultant memory corruption) when… CVSS 3.0HIGH 8.8
- TI-2018-10269 In MP4v2 2.0.0, there is an integer underflow (with resultant memory corruption) when parsing MP4Atom in mp4atom.cpp. CVSS 3.0HIGH 8.8
Sources
- CVE-2018-14403 · CVE Program
- CVE-2018-14403 · NVD
- FIRST EPSS
- GHSA-cq9c-6m4q-fv48 · GitHub Advisory Database · CC BY 4.0
- CVE-2018-14403 · Red Hat security data · CC BY 4.0
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