PLCHandler vulnerabilities

2 known vulnerabilities in PLCHandler from Codesys. 2 are rated high or critical. Each entry lists the affected versions and the release that fixes it, where the vendor has published one.

Latest first

• 7.5 High severity

  Development System 3: Allocation of Resources Without Limits or Throttling

  CVE-2026-76992Sep 30, 2026Codesys

  The CODESYS Gateway Client allocates memory based on a size field in a gateway response without enforcing an appropriate upper limit. An unauthenticated remote attacker controlling a malicious gateway can exploit this behavior to trigger excessive memory consu

• 7.5 High severity

  CODESYS Development System: Unprotected Transport of Credentials

  CVE-2022-31805Jun 24, 2022CodesysEPSS 1.06%

  In the CODESYS Development System multiple components in multiple versions transmit the passwords for the communication between clients and servers unprotected.