Snap7 Project develops a narrowly scoped library for communication with Siemens industrial automation controllers, with its vulnerability profile centered on the core Snap7 and Snap7 Server products. The observed exposure reflects weaknesses in input validation—a common parsing challenge for protocols that interface directly with industrial device communication.
The number and severity of CVEs published that impact products developed by Snap7 Project over time
Signals from CVEs in this vendor scope (2 CVEs).
2 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2020-22552HIGH The Snap7 server component in version 1.4.1, when an attacker sends a crafted packet with COTP protocol the last-data-unit flag set to No and S7 writes a var function, the Snap7 se | Oct 28, 2020 | 7.5 | 27 | NO | NO |
CVE-2017-1000230HIGH The Snap7 Server version 1.4.1 can be crashed when the ItemCount field of the ReadVar or WriteVar functions of the S7 protocol implementation in Snap7 are provided with unexpected | Nov 17, 2017 | 7.5 | 23 | NO | NO |
Signals from CVEs in this vendor scope (2 CVEs).
An overview of all social media posts that mention a CVE ID that affects a product developed by Snap7 Project.
Media articles that mention a CVE ID that affects a product developed by Snap7 Project — matched by CVE ID, not by vendor name.