CVE-2023-35921

CVSS 3.1 Score 7.5 of 10 (high)

Details

Published Jul 11, 2023
Updated: Jul 19, 2023
CWE ID 400

Summary

CVE-2023-35921 is a vulnerability affecting SIMATIC MV540 H, SIMATIC MV540 S, SIMATIC MV550 H, SIMATIC MV550 S, SIMATIC MV560 U, and SIMATIC MV560 X devices with versions earlier than V3.3.4. These devices are unable to process specially crafted Ethernet frames properly, which could be exploited by an unauthenticated remote attacker to cause a denial of service. The affected devices need manual restart to recover from the attack. The base severity of this vulnerability is rated as HIGH with a CVSS score of 7.5, indicating a significant potential danger to organizations using these products.

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