AUGUST 4, 2026
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Case File

CVE-2021-46143

HIGH · CVSS 8.1 EPSS 3.79% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-01-06 · 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 ↗ github.com ↗

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

CVE
CVE-2021-46143
Severity
HIGH
CVSS
8.1
EPSS
3.79%

Original NVD Description

In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupSize.