CVE-2021-29242: Codesys Control For Beaglebone Sl

High severity, CVSS 7.3. EPSS: 1.1% chance of exploitation in the next 30 days.

CODESYS Control Runtime system before 3.5.17.0 has improper input validation. Attackers can send crafted communication packets to change the router's addressing scheme and may re-route, add, remove or change low level communication packages.

Affected products

  • Codesys Control For Beaglebone Sl: from 3.0, before 4.1.0.0 (fixed in 4.1.0.0)
  • Codesys Control For Empc-a/imx6 Sl: from 3.0, before 4.1.0.0 (fixed in 4.1.0.0)
  • Codesys Control For IOT2000 Sl: from 3.0, before 4.1.0.0 (fixed in 4.1.0.0)
  • Codesys Control For Linux Arm Sl: from 3.0, before 4.1.0.0 (fixed in 4.1.0.0)
  • Codesys Control For Linux Sl: from 3.0, before 4.1.0.0 (fixed in 4.1.0.0)
  • Codesys Control For PFC100 Sl: from 3.0, before 4.1.0.0 (fixed in 4.1.0.0)
  • Codesys Control For PFC200 Sl: from 3.0, before 4.1.0.0 (fixed in 4.1.0.0)
  • Codesys Control For Plcnext Sl: from 3.0, before 4.1.0.0 (fixed in 4.1.0.0)
  • Codesys Control For Raspberry Pi Sl: from 3.0, before 4.1.0.0 (fixed in 4.1.0.0)
  • Codesys Control For Wago Touch Panels 600 Sl: from 3.0, before 4.1.0.0 (fixed in 4.1.0.0)
  • Codesys Control Rte: from 3.0, before 3.5.17.0 (fixed in 3.5.17.0)
  • Codesys Control Runtime System Toolkit: from 3.0, before 3.5.17.0 (fixed in 3.5.17.0)
  • Codesys Control Win: from 3.0, before 3.5.17.0 (fixed in 3.5.17.0)
  • Codesys Edge Gateway: from 3.0, before 3.5.17.0 (fixed in 3.5.17.0); from 3.0, before 4.1.0.0 (fixed in 4.1.0.0)
  • Codesys Embedded Target Visu Toolkit: from 3.0, before 3.5.17.0 (fixed in 3.5.17.0)
  • Codesys Gateway: from 3.0, before 3.5.17.0 (fixed in 3.5.17.0)
  • Codesys HMI: from 3.0, before 3.5.17.0 (fixed in 3.5.17.0)
  • Codesys Opc Server: from 3.0, before 3.5.17.0 (fixed in 3.5.17.0)
  • Codesys Plchandler: from 3.0, before 3.5.17.0 (fixed in 3.5.17.0)
  • Codesys Remote Target Visu Toolkit: from 3.0, before 3.5.17.0 (fixed in 3.5.17.0)
  • Codesys Safety Sil: from 3.0, before 3.5.17.0 (fixed in 3.5.17.0)
  • Codesys Simulation Runtime: from 3.0, before 3.5.17.0 (fixed in 3.5.17.0)

Published 2021-05-03. Last modified 2026-06-17.