AUGUST 4, 2026
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Case File

CVE-2021-40943

MEDIUM · CVSS 5.5 EPSS 0.57% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-06-28 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.5. Public exploit code or proof-of-concept references have been detected in its references. It may lead to a denial-of-service condition.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-40943
Severity
MEDIUM
CVSS
5.5
EPSS
0.57%

Original NVD Description

In Bento4 1.6.0-638, there is a null pointer reference in the function AP4_DescriptorListInspector::Action function in Ap4Descriptor.h:124 , as demonstrated by GPAC. This can cause a denial of service (DOS).

Related CVEs

Other vulnerabilities affecting the same vendor(s)