An issue in mp4v2 2.0.0 allows an attacker to execute arbitrary code via the MP4RtpAtom::ReadHntiType() in src/atom_rtp.cpp. A specially crafted MP4 file can cause an undersized rtp atom to produce a near-2^64 allocation size through an unchecked offset subtraction
Advisories

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Fixes

Solution

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Workaround

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History

Sat, 17 Oct 2026 08:15:00 +0000

Type Values Removed Values Added
Title Integer Underflow in MP4RtpAtom Leading to Arbitrary Code Execution

Wed, 14 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
First Time appeared Techsmith
Techsmith mp4v2
Vendors & Products Techsmith
Techsmith mp4v2

Wed, 14 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-190
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 13 Oct 2026 14:30:00 +0000

Type Values Removed Values Added
Description An issue in mp4v2 2.0.0 allows an attacker to execute arbitrary code via the MP4RtpAtom::ReadHntiType() in src/atom_rtp.cpp. A specially crafted MP4 file can cause an undersized rtp atom to produce a near-2^64 allocation size through an unchecked offset subtraction
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-10-14T19:19:28.081Z

Reserved: 2026-09-22T00:00:00.000Z

Link: CVE-2026-95121

cve-icon Vulnrichment

Updated: 2026-10-14T19:19:23.406Z

cve-icon NVD

Status : Deferred

Published: 2026-10-13T15:17:51.553

Modified: 2026-10-16T19:56:15.773

Link: CVE-2026-95121

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-17T08:00:05Z

Weaknesses