CVE-2022-40438

CVE-2022-40438 is a medium-severity vulnerability in Axiosys Bento4 with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-120.

Key facts

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2022-40438?
CVE-2022-40438 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-40438 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-40438?
CVE-2022-40438 affects Axiosys Bento4. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-40438?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-40438 published?
CVE-2022-40438 was published on 2022-09-14 and last updated on 2026-06-17.

References

Affected products (1)

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