CVE-2020-23333

Name: CVE-2020-23333
Creator: NVD / NIST
Published: 2021-08-17T22:15:07.94+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.21%

Last modified Jun 17, 2026

CVE-2020-23333 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A heap-based buffer overflow exists in the AP4_CttsAtom::AP4_CttsAtom component located in /Core/Ap4Utils.h of Bento4 version 06c39d9. This can lead to a denial of service (DOS).. EPSS estimates a 1.21% chance of exploitation in the next 30 days.

Description

A heap-based buffer overflow exists in the AP4_CttsAtom::AP4_CttsAtom component located in /Core/Ap4Utils.h of Bento4 version 06c39d9. This can lead to a denial of service (DOS).

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

1.21%

64.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Axiosys	Bento4	< 1.6.0-635

References

https://github.com/axiomatic-systems/Bento4/issues/507Exploit, Patch, Third Party Advisory
https://github.com/axiomatic-systems/Bento4/issues/507Exploit, Patch, Third Party Advisory

Timeline

Published: Aug 17, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-23333?

A heap-based buffer overflow exists in the AP4_CttsAtom::AP4_CttsAtom component located in /Core/Ap4Utils.h of Bento4 version 06c39d9. This can lead to a denial of service (DOS).

How severe is CVE-2020-23333?

CVE-2020-23333 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.21% probability of exploitation in the next 30 days.

How do I fix CVE-2020-23333?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-23333?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST