Cyber Resilience

CVE-2021-40943

MediumPublic PoC

Published: 28 June 2022

Published
28 June 2022
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS Score 0.0015 35.3th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-40943 is a medium-severity NULL Pointer Dereference (CWE-476) vulnerability in Axiosys Bento4. Its CVSS base score is 5.5 (Medium).

Operationally, ranked at the 35.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

In Bento4 1.6.0-638, there is a null pointer reference in the function AP4_DescriptorListInspector::Action function in Ap4Descriptor.h:124 , as demonstrated by GPAC. This can cause a denial of service (DOS).

CWE(s)
CWE-476

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

axiosys
bento4
1.6.0-638

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References