A NULL pointer dereference was discovered in the AP4_HdlrAtom class in Bento4 version 1.5.0-617.

published 2017-09-21 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-6142

cvss: 6.5; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.7%; EPSS 1.7% chance of exploitation in 30 days, percentile 76%
public exploits: 0; none known

A NULL pointer dereference was discovered in the AP4_HdlrAtom class in Bento4 version 1.5.0-617. The vulnerability causes a segmentation fault and application crash in AP4_StdcFileByteStream::ReadPartial in System/StdC/Ap4StdCFileByteStream.cpp, which leads to remote denial of service.

Patch / fix

links 2

Exploit prediction

1.67% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

blogs.gentoo.org https://blogs.gentoo.org/ago/2017/09/14/bento4-null-pointer-dereference-in-ap4_stdcfilebytestreamreadpartial-ap4stdcfilebytestream-cpp/ referenced PoC, tagged "exploit" by a source, unverified
github.com https://github.com/axiomatic-systems/Bento4/issues/185 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.0	6.5	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness

CWE-476 NULL Pointer Dereference

References

github.com /axiomatic-systems/Bento4/commit/22192de5367fa0cee985917f092be4060b7c00b0
patch, third-party-advisory
blogs.gentoo.org /ago/2017/09/14/bento4-null-pointer-dereference-in-ap4_stdcfilebytestreamreadpartial-ap4stdcfilebytestream-cpp
exploit, issue-tracking, patch, third-party-advisory, vdb-entry
github.com /axiomatic-systems/Bento4/issues/185
exploit, third-party-advisory

Sources

CVE List CVE-2017-14642
NVD CVE-2017-14642

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