VULNERABILITY INTELLIGENCE

CVE-2021-21859

CVSS score8.8 HIGH
EPSS probability1.59%
CISA KEVNot currently listed
Published2021-08-16
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Description

An exploitable integer truncation vulnerability exists within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. The stri_box_read function is used when processing atoms using the 'stri' FOURCC code. An attacker can convince a user to open a video to trigger this vulnerability.

Weakness classification

  • talos-cna@cisco.com: CWE-680
  • nvd@nist.gov: CWE-190

Primary references