CVE-2026-51218 | snap7 1.4.3 /core/s7_server.cpp PerformFunctionWrite heap-based overflow

June 30, 2026 Yanac

A vulnerability, which was classified as critical, was found in snap7 1.4.3. The affected element is the function TS7Worker::PerformFunctionWrite of the file /core/s7_server.cpp. The manipulation results in heap-based buffer overflow.

This vulnerability is cataloged as CVE-2026-51218. The attack may be launched remotely. There is no exploit available.VulDB Recent EntriesRead More