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Medium · 4.7 CVE-2026-90572 EUVD-2026-77053GHSA-xrq6-q643-mcv3

davenardella snap7 s7_micro_client.cpp opUpload memory corruption

Published Sep 13, 2026 · Updated Sep 15, 2026 · Assigned by VulDB

Description

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/s7_micro_client.cpp. Executing a manipulation of the argument DataLen can lead to memory corruption. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.

Affected products

VendorProductAffectedFixed
davenardella snap7 1.4.0, 1.4.1, 1.4.2, 1.4.3 —

References