SEPTEMBER 29, 2026
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Case File

CVE-2021-34584

CRITICAL · CVSS 9.1 EPSS 1.07%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-10-26 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.1. See the original NVD description below for full technical details.

CVE
CVE-2021-34584
Severity
CRITICAL
CVSS
9.1
EPSS
1.07%

Original NVD Description

Crafted web server requests can be utilised to read partial stack or heap memory or may trigger a denial-of- service condition due to a crash in the CODESYS V2 web server prior to V1.1.9.22.

Related CVEs

Other vulnerabilities affecting the same vendor(s)