AUGUST 4, 2026
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Case File

CVE-2021-42643

HIGH · CVSS 8.8 EPSS 1.64% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-05-17 · 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.

Detected Signals
code execution

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

CVE
CVE-2021-42643
Severity
HIGH
CVSS
8.8
EPSS
1.64%

Original NVD Description

cmseasy V7.7.5_20211012 is affected by an arbitrary file write vulnerability. Through this vulnerability, a PHP script file is written to the website server, and accessing this file can lead to a code execution vulnerability.