high7.5
CVE-2020-22552
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 f…
Impact
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 server will be crashed.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Snap7 Project | Snap7 | Version 1.4.1 |