CVE-2022-31804: Codesys Gateway

High severity, CVSS 7.5. EPSS: 1.1% chance of exploitation in the next 30 days.

The CODESYS Gateway Server V2 does not verifiy that the size of a request is within expected limits. An unauthenticated attacker may allocate an arbitrary amount of memory, which may lead to a crash of the Gateway due to an out-of-memory condition.

Affected products

• Codesys Gateway: from 2.0, before 2.3.9.38 (fixed in 2.3.9.38)

Published 2022-06-24. Last modified 2026-06-17.