Skip to main content
No exploitation reportedFix available

CVE-2021-28300

No exploitation reported by the sources we read.

  • Published2021-04-14
  • WeaknessCWE-476

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2021-04-1414:15CVE publishedNVD

Versions per branch

NVD
Gpac
BranchAffectedFixed in
0.5= 0.5.2no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • ccextractorDebian:11all versions · no fixed version listed
  • gpacUbuntu:Pro:24.04:LTSall versions · no fixed version listed
  • gpacUbuntu:Pro:22.04:LTSall versions · no fixed version listed
  • gpacUbuntu:Pro:20.04:LTSall versions · no fixed version listed
  • gpacUbuntu:Pro:18.04:LTSall versions · no fixed version listed
  • gpacUbuntu:Pro:16.04:LTSall versions · no fixed version listed
  • gpacUbuntu:Pro:14.04:LTSall versions · no fixed version listed
  • gpacDebian:11all versions · fixed in 1.0.1+dfsg1-4

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2021-04-14
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-5wqc-3hgv-x49w

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 2026-11-08, 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), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Running gpac? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this productCISA KEV additions, November 2026Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database

Sources for this record