CVE-2021-40575

Name: CVE-2021-40575
Creator: NVD / NIST
Published: 2022-01-13T19:15:08.367+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.86%

Last modified Jun 17, 2026

CVE-2021-40575 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. The binary MP4Box in Gpac 1.0.1 has a null pointer dereference vulnerability in the mpgviddmx_process function in reframe_mpgvid.c, which allows attackers to cause a denial of service. This vulnerability is possibly due to an incomplete fix for CVE-2021-40566.. EPSS estimates a 0.86% chance of exploitation in the next 30 days.

Description

The binary MP4Box in Gpac 1.0.1 has a null pointer dereference vulnerability in the mpgviddmx_process function in reframe_mpgvid.c, which allows attackers to cause a denial of service. This vulnerability is possibly due to an incomplete fix for CVE-2021-40566.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.86%

54.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Gpac	Gpac	1.0.1

References

https://github.com/gpac/gpac/commit/5f2c2a16d30229b6241f02fa28e3d6b810d64858Patch, Third Party Advisory
https://github.com/gpac/gpac/issues/1905Exploit, Issue Tracking, Third Party Advisory
https://www.debian.org/security/2023/dsa-5411
https://github.com/gpac/gpac/commit/5f2c2a16d30229b6241f02fa28e3d6b810d64858Patch, Third Party Advisory
https://github.com/gpac/gpac/issues/1905Exploit, Issue Tracking, Third Party Advisory
https://www.debian.org/security/2023/dsa-5411

Timeline

Published: Jan 13, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-40575?

How severe is CVE-2021-40575?

CVE-2021-40575 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.86% probability of exploitation in the next 30 days.

How do I fix CVE-2021-40575?

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-2021-40575?

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

Scan your code now

Source: NVD / NIST