Vulnerability Database

309,134

Total vulnerabilities in the database

CVE-2021-21853

Multiple exploitable integer overflow vulnerabilities exist within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. A specially crafted MPEG-4 input can cause an integer overflow due to unchecked addition arithmetic resulting in a heap-based buffer overflow that causes memory corruption. An attacker can convince a user to open a video to trigger this vulnerability.

  • Published: Aug 18, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-21853
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 8.8
  • AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v2:

  • Severity: Medium
  • Score: 6.8
  • AV:N/AC:M/Au:N/C:P/I:P/A:P

CWEs:

Software From Fixed in
gpac / gpac 1.0.1 1.0.1.x
debian / debian_linux 10.0 10.0.x
debian / debian_linux 11.0 11.0.x