CVE-2026-95121
Publication date 13 October 2026
Last updated 15 October 2026
Ubuntu priority
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
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| mp4v2 | 26.04 LTS resolute | Not in release |
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy | Not in release | |
| 18.04 LTS bionic |
Needs evaluation
|
|
| 16.04 LTS xenial |
Needs evaluation
|
Severity score breakdown
CVSS version: CVSS v3.0
Base score
7.8 · High
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
Other references
- https://www.cve.org/CVERecord?id=CVE-2026-95121
- https://gist.github.com/1820893135-pixel/c56b6a1627453e67ca2fb7e29bae95c6
- https://github.com/TechSmith/mp4v2/issues/98
- https://github.com/TechSmith/mp4v2/pull/100
- https://github.com/TechSmith/mp4v2/pull/100/changes/c7f4e1da1b75996a053b05b69be8e738bf77a26c