Description
In CODESYS Gateway Server V2 an insufficient check for the activity of TCP client connections allows an unauthenticated attacker to consume all available TCP connections and prevent legitimate users or clients from establishing a new connection to the CODESYS Gateway Server V2. Existing connections are not affected and therefore remain intact.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| CODESYS | CODESYS Gateway Server V2 | V2 – < V2.3.9.38 | V2.3.9.38 |
Advisories 3
- FSA-202406 Several Codesys Gateway v2 vulnerabilities in Codesys provided by Festo CERT@VDE · Dec 3, 2024
- ICSA-25-182-03 FESTO CODESYS CISA ICS & IT advisories · Dec 3, 2024
- VDE-2022-040 WAGO: Multiple Vulnerabilities in Controller with WAGO I/O-Pro / CODESYS 2.3 Runtime CERT@VDE · Sep 22, 2023