CVE-2021-32439

Public Exploit

Description

Buffer overflow in the stbl_AppendSize function in MP4Box in GPAC 1.0.1 allows attackers to cause a denial of service or execute arbitrary code via a crafted file.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.28%
Third-Party Advisory github.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/gpac/gpac/issues/1774 third party advisory issue tracking exploit
https://github.com/gpac/gpac/commit/77ed81c069e10b3861d88f72e1c6be1277ee7eae third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-32439?
CVE-2021-32439 has been scored as a high severity vulnerability.
How to fix CVE-2021-32439?
To fix CVE-2021-32439, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-32439 being actively exploited in the wild?
It is possible that CVE-2021-32439 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.