CVE-2021-21862

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

Multiple exploitable integer truncation 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 improper memory allocation resulting in a heap-based buffer overflow that causes memory corruption The implementation of the parser used for the “Xtra” FOURCC code is handled. An attacker can convince a user to open a video to trigger this vulnerability.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-680CWE-119

Affected software

VendorProductVersions
n/aGPACGPAC Project Advanced Content commit a8a8d412dabcb129e695c3e7d861fcc81f608304, GPAC Project Advanced Content v1.0.1

References

Timeline

Published
Aug 18, 2021
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-21862: High severity, CVSS 8.8 | Vulnix