CVE-2026-79625

Improper Synchronization in Monitoring in CODESYS Control Runtime

Published Sep 30, 2026 CVSS 4.0 · 7.2 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Codesys
Codesys control For Beaglebone Sl
Codesys control For Empc-a/imx6 Sl
Codesys control For Iot2000 Sl
Codesys control For Linux Arm Sl
Codesys control For Linux Sl
Codesys control For Pfc100 Sl
Codesys control For Pfc200 Sl
Codesys control For Plcnext Sl
Codesys control For Raspberry Pi Sl
Codesys control For Wago Touch Panels 600 Sl
Codesys control Rte (for Beckhoff Cx) Sl
Codesys control Rte (sl)
Codesys control Win (sl)
Codesys development System V3
Codesys hmi (sl)
Codesys runtime Toolkit
Codesys safety Sil2
Codesys virtual Control Sl
Vendors & Products Codesys
Codesys control For Beaglebone Sl
Codesys control For Empc-a/imx6 Sl
Codesys control For Iot2000 Sl
Codesys control For Linux Arm Sl
Codesys control For Linux Sl
Codesys control For Pfc100 Sl
Codesys control For Pfc200 Sl
Codesys control For Plcnext Sl
Codesys control For Raspberry Pi Sl
Codesys control For Wago Touch Panels 600 Sl
Codesys control Rte (for Beckhoff Cx) Sl
Codesys control Rte (sl)
Codesys control Win (sl)
Codesys development System V3
Codesys hmi (sl)
Codesys runtime Toolkit
Codesys safety Sil2
Codesys virtual Control Sl
Type Values Removed Values Added
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.
Title Improper Synchronization in Monitoring in CODESYS Control Runtime
Weaknesses CWE-362
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H'}

cvssV4_0

{'score': 7.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N'}