Description
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.
Unscored
CVE-2020-22552
EUVD-2020-15312GHSA-c87p-2q2j-cwwp
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 a…
Published Oct 28, 2020 · Updated Jul 9, 2026 · Assigned by mitre