High 7.8Published Oct 13, 2026

CVE-2026-95121An issue in mp4v2 2.0.0 allows an attacker to execute arbitrary code via the MP4RtpAtom::ReadHntiType() in src/atom_rtp.cpp.

Updated under an hour ago (2026-10-19 08:00 UTC)

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EPSS puts the chance of exploitation in the next 30 days at 0.14%, higher than 3% of scored CVEs.

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Exploited in the last 30 days

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

CVSS: 7.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-190
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.14% (percentile 3)
Assigned by: mitre
NVD analysis: Deferred
Record last updated: Oct 14, 2026
First seen by InfoSec Signals: Oct 13, 2026

Affected products

No affected products are listed yet.

References

https://github.com/TechSmith/mp4v2/issues/98
https://github.com/TechSmith/mp4v2/pull/100
https://github.com/TechSmith/mp4v2/pull/100/changes/c7f4e1da1b75996a053b05b69be8e738bf77a26c
https://gist.github.com/1820893135-pixel/c56b6a1627453e67ca2fb7e29bae95c6

The CVE record on cve.org NVD's entry

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