The MP4Atom class in mp4atom.cpp in MP4v2 through 2.0.0 mishandles Entry Number validation for the MP4 Table Property, which allows remote…

published 2018-02-23 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-19071

cvss: 8.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.4%; EPSS 1.4% chance of exploitation in 30 days, percentile 71%
public exploits: 0; none known

The MP4Atom class in mp4atom.cpp in MP4v2 through 2.0.0 mishandles Entry Number validation for the MP4 Table Property, which allows remote attackers to cause a denial of service (overflow, insufficient memory allocation, and segmentation fault) or possibly have unspecified other impact via a crafted mp4 file.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-7339 updated 2025-11-21 cvss 3.5

libmp4v2: Entry Number validation mishandle in the MP4 Table Property in MP4Atom class in mp4atom.cpp

Red Hat All currently supported Red Hat products
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.35% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.0	8.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

github.com /pingsuewim/libmp4_bof
third-party-advisory

Sources

CVE List CVE-2018-7339
NVD CVE-2018-7339

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary