Security Risk Category

snap7 Security Risks

Published vulnerability pages connected to snap7. One risk can appear in multiple categories while keeping one canonical page.

snap7 risks

Showing 1 of 1 published risks.

lowEPSS 0.003

Snap7 ReadVar Request Handler Stack Buffer Overflow Vulnerability

A flaw has been found in davenardella snap7 up to 1.4.3. This affects the function TS7Worker::PerformFunctionRead of the file src/core/s7_server.cpp of the component ReadVar Request Handler. This manipulation causes deserialization. The attack requires access to the local network. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.

CVE-2026-15105snap7s7industrial-controlot-security

Updated Jul 10, 2026