CVE-2021-28300
CVSS v3
9.8
CRITICAL
EPSS Score
2.1 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
NULL Pointer Dereference in the "isomedia/track.c" module's "MergeTrack()" function of GPAC v0.5.2 allows attackers to execute arbitrary code or cause a Denial-of-Service (DoS) by uploading a malicious MP4 file.
Technical details
- Published
- 2021-04-14
Frequently asked questions
What is CVE-2021-28300?
NULL Pointer Dereference in the "isomedia/track.c" module's "MergeTrack()" function of GPAC v0.5.2 allows attackers to execute arbitrary code or cause a Denial-of-Service (DoS) by uploading a malicious MP4 file.
Is CVE-2021-28300 actively exploited?
Active exploitation of CVE-2021-28300 has not been confirmed. Its EPSS score was 2.1% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-28300?
CVE-2021-28300 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2021-28300 affecting your environment?
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