Development System 3
Monthly
Concurrent monitoring requests against CODESYS control runtimes are not synchronized, letting an authenticated remote client that already holds monitoring rights corrupt internal memory structures and produce incorrect data processing or a denial-of-service condition. Affected components span the CODESYS soft-PLC family - Control RTE (SL) and Control RTE (for Beckhoff CX) SL, Control Win (SL), Runtime Toolkit, Safety SIL2, HMI (SL), Development System 3, and the Control for Linux, Linux ARM, Raspberry Pi, BeagleBone, PFC100, PFC200, PLCnext, IOT2000, emPC-A/iMX6, WAGO Touch Panels 600 and Virtual Control SL variants. Network reachable with only low privileges (PR:L), no user interaction and no non-default configuration, the race yields high integrity and availability impact but no confidentiality exposure (CVSS 4.0 base 7.2; CVSS 3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H); no publicly available exploit code and no confirmed active exploitation were identified at time of analysis, and a vendor patch is available.
Concurrent monitoring requests against CODESYS control runtimes are not synchronized, letting an authenticated remote client that already holds monitoring rights corrupt internal memory structures and produce incorrect data processing or a denial-of-service condition. Affected components span the CODESYS soft-PLC family - Control RTE (SL) and Control RTE (for Beckhoff CX) SL, Control Win (SL), Runtime Toolkit, Safety SIL2, HMI (SL), Development System 3, and the Control for Linux, Linux ARM, Raspberry Pi, BeagleBone, PFC100, PFC200, PLCnext, IOT2000, emPC-A/iMX6, WAGO Touch Panels 600 and Virtual Control SL variants. Network reachable with only low privileges (PR:L), no user interaction and no non-default configuration, the race yields high integrity and availability impact but no confidentiality exposure (CVSS 4.0 base 7.2; CVSS 3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H); no publicly available exploit code and no confirmed active exploitation were identified at time of analysis, and a vendor patch is available.