What is CVE-2021-21849?

CVE-2021-21849 is a high-severity vulnerability in Gpac, classified under Integer Overflow to Buffer Overflow. CVSS score: 8.8/10. Published 2021-08-25.

How severe is CVE-2021-21849?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2021-21849 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Gpac

CVE-2021-21849

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 can cause an integer overflow when the library encounter…

EPSS: 0.017 (74.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Gpac — versions 1.0.1
Debian Debian_linux — versions 10.0, 11.0
N/a Gpac Project — versions GPAC Project Advanced Content commit a8a8d412dabcb129e695c3e7d861fcc81f608304, GPAC Project Advanced Content v1.0.1

Weakness classification (CWE)

Public proof-of-concept exploits

n0-traces/cve_

References

talos-cna@cisco.com (Exploit, Third Party Advisory, x_refsource_MISC)
talos-cna@cisco.com (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)

Frequently asked questions

What is CVE-2021-21849?: CVE-2021-21849 is a high-severity vulnerability in Gpac, classified under Integer Overflow to Buffer Overflow. CVSS score: 8.8/10. Published 2021-08-25.
How severe is CVE-2021-21849?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2021-21849 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.