AUGUST 4, 2026
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Case File

CVE-2023-35921

HIGH · CVSS 7.5 EPSS 0.87%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-07-11 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CVE
CVE-2023-35921
Severity
HIGH
CVSS
7.5
EPSS
0.87%

Original NVD Description

A vulnerability has been identified in SIMATIC MV540 H (All versions < V3.3.4), SIMATIC MV540 S (All versions < V3.3.4), SIMATIC MV550 H (All versions < V3.3.4), SIMATIC MV550 S (All versions < V3.3.4), SIMATIC MV560 U (All versions < V3.3.4), SIMATIC MV560 X (All versions < V3.3.4). Affected devices cannot properly process specially crafted Ethernet frames sent to the devices. This could allow an unauthenticated remote attacker to cause a denial of service condition. The affected devices must be restarted manually.