CVE-2026-95121
High
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
SeverityHigh
CVSS7.8
Exploit probability—
ProductMp4v2
PublishedOct 13, 2026
First seenOct 13, 2026
Weakness typeCWE-190Integer overflow
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mp4v2 | 2.0.0 | — |
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