High severity8.8OSV Advisory· Published Aug 25, 2021· Updated Jun 17, 2026
CVE-2021-21841
CVE-2021-21841
Description
An exploitable integer overflow vulnerability exists within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. A specially crafted MPEG-4 input when reading an atom using the 'sbgp' FOURCC code can cause an integer overflow due to unchecked 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.
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Affected products
2- Range: =1.0.1
Patches
Vulnerability mechanics
References
2- talosintelligence.com/vulnerability_reports/TALOS-2021-1297nvdExploitThird Party Advisory
- www.debian.org/security/2021/dsa-4966nvdThird Party Advisory
News mentions
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