AUGUST 4, 2026
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Case File

CVE-2021-34578

CRITICAL · CVSS 9.8 EPSS 0.96%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-08-31 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. See the original NVD description below for full technical details.

CVE
CVE-2021-34578
Severity
CRITICAL
CVSS
9.8
EPSS
0.96%

Original NVD Description

This vulnerability allows an attacker who has access to the WBM to read and write settings-parameters of the device by sending specifically constructed requests without authentication on multiple WAGO PLCs in firmware versions up to FW07.

Related CVEs

Other vulnerabilities affecting the same vendor(s)

CVE-2025-41732 CRITICAL CVE-2025-41730 CRITICAL CVE-2023-5188 HIGH CVE-2023-4149 CRITICAL CVE-2023-3379 MEDIUM CVE-2023-4089 LOW