CVE-2023-51440

CVSS 3.1 Score 7.5 of 10 (high)

Details

Published Feb 13, 2024
CWE ID 940

Summary

CVE-2023-51440 is a newly identified vulnerability affecting various Siemens SIMATIC and SIPLUS NET CP 343-1 models, including the SIMATIC CP 343-1 (6GK7343-1EX30-0XE0), SIMATIC CP 343-1 Lean (6GK7343-1CX10-0XE0), SIPLUS NET CP 343-1 (6AG1343-1EX30-7XE0), and SIPLUS NET CP 343-1 Lean (6AG1343-1CX10-2XE0). These products have a flaw in their TCP sequence number validation, enabling an unauthenticated remote attacker to disrupt the service by injecting spoofed TCP RST packets. This vulnerability could lead to a denial of service condition. Users are recommended to update their systems as soon as possible to mitigate this risk.

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