AUGUST 4, 2026
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Case File

CVE-2021-22699

HIGH · CVSS 7.5 EPSS 0.98%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-05-26 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. It may lead to a denial-of-service condition.

CVE
CVE-2021-22699
Severity
HIGH
CVSS
7.5
EPSS
0.98%

Original NVD Description

Improper Input Validation vulnerability exists in Modicon M241/M251 logic controllers firmware prior to V5.1.9.1 that could cause denial of service when specific crafted requests are sent to the controller over HTTP.

Related CVEs

Other vulnerabilities affecting the same vendor(s)