CVE-2026-79625— Improper Synchronization in Monitoring in CODESYS Control Runtime
Quick assessment
Affected
CODESYS Control RTE (SL)
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
受影响的产品未能正确同步对其监控功能的访问。当多个客户端同时发送请求时，可能导致错误的读取或写入操作，或导致内部内存结构损坏。拥有监控访问权限的已认证远程攻击者可利用此问题，引发错误的数据处理或拒绝服务（DoS）状况。
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2026-79625
Vulnerability Information
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Vulnerability Title
Improper Synchronization in Monitoring in CODESYS Control Runtime
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用共享资源的并发执行不恰当同步问题(竞争条件)
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| CODESYS | Control RTE (SL) | 3.0.0.0 ~ 3.5.22.40 | - |
|
| CODESYS | Control RTE (for Beckhoff CX) SL | 3.0.0.0 ~ 3.5.22.40 | - |
|
| CODESYS | Control Win (SL) | 3.0.0.0 ~ 3.5.22.40 | - |
|
| CODESYS | Runtime Toolkit | 3.0.0.0 ~ 3.5.22.40 | - |
|
| CODESYS | Safety SIL2 | 3.0.0.0 ~ 3.5.22.40 | - |
|
| CODESYS | HMI (SL) | 3.0.0.0 ~ 3.5.22.40 | - |
|
| CODESYS | Development System 3 | 3.0.0.0 ~ 3.5.22.40 | - |
|
| CODESYS | Control for BeagleBone SL | 3.5.0.0 ~ 4.23.0.0 | - |
|
| CODESYS | Control for emPC-A/iMX6 SL | 3.5.0.0 ~ 4.23.0.0 | - |
|
| CODESYS | Control for IOT2000 SL | 3.5.0.0 ~ 4.23.0.0 | - |
|
| CODESYS | Control for Linux ARM SL | 3.5.0.0 ~ 4.23.0.0 | - |
|
| CODESYS | Control for Linux SL | 3.5.0.0 ~ 4.23.0.0 | - |
|
| CODESYS | Control for PFC100 SL | 3.5.0.0 ~ 4.23.0.0 | - |
|
| CODESYS | Control for PFC200 SL | 3.5.0.0 ~ 4.23.0.0 | - |
|
| CODESYS | Control for PLCnext SL | 3.5.0.0 ~ 4.23.0.0 | - |
|
| CODESYS | Control for Raspberry Pi SL | 3.5.0.0 ~ 4.23.0.0 | - |
|
| CODESYS | Control for WAGO Touch Panels 600 SL | 3.5.0.0 ~ 4.23.0.0 | - |
|
| CODESYS | Virtual Control SL | 3.5.0.0 ~ 4.23.0.0 | - |
|
II. Public POCs for CVE-2026-79625
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-79625 (1)
IV. Related Vulnerabilities
Same vendor: CODESYS
-
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Incorrect Default Permissions in CODESYS Development System
Same weakness: CWE-362
-
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OpenClaw 2026.7.2 before 2026.9.2 Authentication Bypass via -
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V. Comments for CVE-2026-79625
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