The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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 at csgp decoder     sample group description indices 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. (CVE-2021-21851)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote host is affected by the vulnerability described in GLSA-202408-21 (GPAC: Multiple Vulnerabilities)

    Multiple vulnerabilities have been discovered in GPAC. Please review the CVE identifiers referenced below     for details.

Tenable has extracted the preceding description block directly from the Gentoo Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Published	Updated	Severity
259810	Linux Distros Unpatched Vulnerability : CVE-2021-21851	Nessus	Misc.	8/30/2025	8/30/2025	high
205345	GLSA-202408-21 : GPAC: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	8/10/2024	9/30/2024	critical

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high

critical