CVE-2023-35920

Summary

CVE-2023-35920 is a newly identified vulnerability that affects various Siemens SIMATIC MV series devices, including the MV540 H, MV540 S, MV550 H, MV550 S, MV560 U, and MV560 X models. These devices are vulnerable to denial of service attacks due to their inability to properly process specific IP packets. An unauthenticated remote attacker can exploit this vulnerability by sending malicious packets, leading to a denial of service condition. Affected devices must be manually restarted to mitigate the issue. Versions V3.3.4 and above are not affected by this vulnerability.

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