CVE-2021-40568

Name: CVE-2021-40568
Creator: NVD / NIST
Published: 2022-01-13T18:15:07.977+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 1.31%

Last modified Jun 17, 2026

CVE-2021-40568 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A buffer overflow vulnerability exists in Gpac through 1.0.1 via a malformed MP4 file in the svc_parse_slice function in av_parsers.c, which allows attackers to cause a denial of service, even code execution and escalation of privileges.. EPSS estimates a 1.31% chance of exploitation in the next 30 days.

Description

A buffer overflow vulnerability exists in Gpac through 1.0.1 via a malformed MP4 file in the svc_parse_slice function in av_parsers.c, which allows attackers to cause a denial of service, even code execution and escalation of privileges.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

1.31%

67.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-120

Affected Software

Vendor	Product	Versions
Gpac	Gpac	<= 1.0.1

References

https://github.com/gpac/gpac/commit/f1ae01d745200a258cdf62622f71754c37cb6c30Patch, Third Party Advisory
https://github.com/gpac/gpac/issues/1900Exploit, Issue Tracking, Third Party Advisory
https://www.debian.org/security/2023/dsa-5411
https://github.com/gpac/gpac/commit/f1ae01d745200a258cdf62622f71754c37cb6c30Patch, Third Party Advisory
https://github.com/gpac/gpac/issues/1900Exploit, 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-2021-40568?

How severe is CVE-2021-40568?

CVE-2021-40568 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.31% probability of exploitation in the next 30 days.

How do I fix CVE-2021-40568?

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-2021-40568?

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

Scan your code now

Source: NVD / NIST