CVE-2026-90572 davenardella snap7 s7_micro_client.cpp opUpload memory corruption

A vulnerability was determined in davenardella snap7 up to 1.4.3. The affected element is the function TSnap7MicroClient::opUpload of the file src/core/s7microclient.cpp. Executing a manipulation of the argument DataLen can lead to memory corruption. The attack can be executed remotely. The explo...

CVE-2026-90572: Improper Restriction of Operations within the Bounds of a Memory Buffer

A vulnerability was determined in davenardella snap7 up to 1.4.3. The affected element is the function TSnap7MicroClient::opUpload of the file src/core/s7microclient.cpp. Executing a manipulation of the argument DataLen can lead to memory corruption. The attack can be executed remotely. The explo...

CVE-2025-14672: Heap-based Buffer Overflow

A flaw has been found in gmg137 snap7-rs up to 1.142.1. This impacts the function TSnap7MicroClient::opWriteArea of the file s7microclient.cpp. Executing a manipulation can lead to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been published and may be...