CVE-2026-15105

CVE-2026-15105 affects davenardella snap7 up to 1.4.3. The flaw resides in TS7Worker::PerformFunctionRead (src/core/s7_server.cpp) within the ReadVar Request Handler, causing deserialization. Exploitation requires local-network access and a public exploit has been published. The project was infor...

CVE-2026-51218

CVE-2026-51218 affects snap7 v1.4.3, where a heap buffer overflow in TS7Worker::PerformFunctionWrite() (/core/s7_server.cpp) can be triggered by a crafted packet to cause a Denial of Service. The connected sources confirm the vulnerable function and file, the software version, and the impact (DoS...