AUGUST 4, 2026
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Case File

CVE-2021-41456

HIGH · CVSS 7.5 EPSS 1.24% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-10-01 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

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

GitHub PoC Links
github.com ↗

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

CVE
CVE-2021-41456
Severity
HIGH
CVSS
7.5
EPSS
1.24%

Original NVD Description

There is a stack buffer overflow in MP4Box v1.0.1 at src/filters/dmx_nhml.c:1004 in the nhmldmx_send_sample() function szXmlTo parameter which leads to a denial of service vulnerability.