UBUNTU-CVE-2026-95121

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Source

https://ubuntu.com/security/CVE-2026-95121

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-95121.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-95121

Upstream

CVE-2026-95121

Published

2026-10-13T15:17:00Z

Modified

2026-10-17T13:01:19Z

Severity

7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

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

Affected packages

Ubuntu:16.04:LTS / mp4v2

Package

Name: mp4v2
Purl: pkg:deb/ubuntu/mp4v2?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.0.0~dfsg0-3

2.0.0~dfsg0-4

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "libmp4v2-2",
            "binary_version":  "2.0.0~dfsg0-4"
        },
        {
            "binary_name":  "mp4v2-utils",
            "binary_version":  "2.0.0~dfsg0-4"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-95121.json"

Ubuntu:18.04:LTS / mp4v2