What is CVE-2022-40438?

CVE-2022-40438 is a medium-severity vulnerability in Axiosys Bento4, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.5/10. Published 2022-09-14.

How severe is CVE-2022-40438?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2022-40438 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Axiosys Bento4

CVE-2022-40438

Buffer overflow vulnerability in function AP4_MemoryByteStream::WritePartial in mp42aac in Bento4 v1.6.0-639, allows attackers to cause a denial of service via a crafted file.

Vulnerability class: Buffer Overflow

EPSS: 0.006 (45.9th percentile) — read the EPSS interpretation.

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.

Affected products

Axiosys Bento4 — versions 1.6.0-639
N/a — versions n/a

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2022-40438?: CVE-2022-40438 is a medium-severity vulnerability in Axiosys Bento4, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.5/10. Published 2022-09-14.
How severe is CVE-2022-40438?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2022-40438 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.