Out-of-bounds Read in Axiosys Bento4

CVE-2022-40737

An issue was discovered in Bento4 through 1.6.0-639. A buffer over-read exists in the function AP4_StdcFileByteStream::WritePartial located in System/StdC/Ap4StdCFileByteStream.cpp, called from AP4_ByteStream::Write and AP4_HdlrAtom::WriteFields.

Vulnerability class: Buffer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.007 (51.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2022-40737: held from 0.006 to 0.007.

EPSS over last 30 days · oldest: 0.006 · newest: 0.007 · change: +0.001

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-40737?
CVE-2022-40737 is a medium-severity vulnerability in Axiosys Bento4, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2022-09-15.
How severe is CVE-2022-40737?
Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2022-40737 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.