CVE-2026-79625
High
Description
Affected products do not properly synchronize access to their monitoring functionality. When multiple clients send concurrent requests, this may lead to incorrect reads or writes, or to corruption of internal memory structures. An authenticated remote attacker with monitoring access can exploit this issue to cause incorrect data processing or a denial-of-service condition.
SeverityHigh
CVSS8.1
Exploit probability—
ProductControl RTE (SL)
PublishedSep 30, 2026
First seenSep 30, 2026
Weakness typeCWE-362Race condition
How to fix
Update
- CODESYS Control RTE (SL)3.5.22.40 or later
- CODESYS Control RTE (for Beckhoff CX) SL3.5.22.40 or later
- CODESYS Control Win (SL)3.5.22.40 or later
- CODESYS Runtime Toolkit3.5.22.40 or later
- CODESYS Safety SIL23.5.22.40 or later
- CODESYS HMI (SL)3.5.22.40 or later
- CODESYS Development System 33.5.22.40 or later
- CODESYS Control for BeagleBone SL4.23.0.0 or later
- CODESYS Control for emPC-A/iMX6 SL4.23.0.0 or later
- CODESYS Control for IOT2000 SL4.23.0.0 or later
- CODESYS Control for Linux ARM SL4.23.0.0 or later
- CODESYS Control for Linux SL4.23.0.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| CODESYS Control RTE (SL) | 3.0.0.0 ≤ v < 3.5.22.40 | 3.5.22.40 |
| CODESYS Control RTE (for Beckhoff CX) SL | 3.0.0.0 ≤ v < 3.5.22.40 | 3.5.22.40 |
| CODESYS Control Win (SL) | 3.0.0.0 ≤ v < 3.5.22.40 | 3.5.22.40 |
| CODESYS Runtime Toolkit | 3.0.0.0 ≤ v < 3.5.22.40 | 3.5.22.40 |
| CODESYS Safety SIL2 | 3.0.0.0 ≤ v < 3.5.22.40 | 3.5.22.40 |
| CODESYS HMI (SL) | 3.0.0.0 ≤ v < 3.5.22.40 | 3.5.22.40 |
| CODESYS Development System 3 | 3.0.0.0 ≤ v < 3.5.22.40 | 3.5.22.40 |
| CODESYS Control for BeagleBone SL | 3.5.0.0 ≤ v < 4.23.0.0 | 4.23.0.0 |
| CODESYS Control for emPC-A/iMX6 SL | 3.5.0.0 ≤ v < 4.23.0.0 | 4.23.0.0 |
| CODESYS Control for IOT2000 SL | 3.5.0.0 ≤ v < 4.23.0.0 | 4.23.0.0 |
| CODESYS Control for Linux ARM SL | 3.5.0.0 ≤ v < 4.23.0.0 | 4.23.0.0 |
| CODESYS Control for Linux SL | 3.5.0.0 ≤ v < 4.23.0.0 | 4.23.0.0 |
| CODESYS Control for PFC100 SL | 3.5.0.0 ≤ v < 4.23.0.0 | 4.23.0.0 |
| CODESYS Control for PFC200 SL | 3.5.0.0 ≤ v < 4.23.0.0 | 4.23.0.0 |
| CODESYS Control for PLCnext SL | 3.5.0.0 ≤ v < 4.23.0.0 | 4.23.0.0 |
| CODESYS Control for Raspberry Pi SL | 3.5.0.0 ≤ v < 4.23.0.0 | 4.23.0.0 |
| CODESYS Control for WAGO Touch Panels 600 SL | 3.5.0.0 ≤ v < 4.23.0.0 | 4.23.0.0 |
| CODESYS Virtual Control SL | 3.5.0.0 ≤ v < 4.23.0.0 | 4.23.0.0 |
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