CVE-2026-79625 (GCVE-0-2026-79625)
Vulnerability from cvelistv5 – Published: 2026-09-30 09:23 – Updated: 2026-09-30 13:49
VLAI
EPSS
VEX
Title
Improper Synchronization in Monitoring in CODESYS Control Runtime
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 13:49 UTC
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
1 reference
Impacted products
18 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| CODESYS | Control RTE (SL) |
Affected:
3.0.0.0 , < 3.5.22.40
(semver)
|
guessed | |
| CODESYS | Control RTE (for Beckhoff CX) SL |
Affected:
3.0.0.0 , < 3.5.22.40
(semver)
|
guessed | |
| CODESYS | Control Win (SL) |
Affected:
3.0.0.0 , < 3.5.22.40
(semver)
|
guessed | |
| CODESYS | Runtime Toolkit |
Affected:
3.0.0.0 , < 3.5.22.40
(semver)
|
guessed | |
| CODESYS | Safety SIL2 |
Affected:
3.0.0.0 , < 3.5.22.40
(semver)
|
guessed | |
| CODESYS | HMI (SL) |
Affected:
3.0.0.0 , < 3.5.22.40
(semver)
|
guessed | |
| CODESYS | Development System 3 |
Affected:
3.0.0.0 , < 3.5.22.40
(semver)
|
guessed | |
| CODESYS | Control for BeagleBone SL |
Affected:
3.5.0.0 , < 4.23.0.0
(semver)
|
guessed | |
| CODESYS | Control for emPC-A/iMX6 SL |
Affected:
3.5.0.0 , < 4.23.0.0
(semver)
|
guessed | |
| CODESYS | Control for IOT2000 SL |
Affected:
3.5.0.0 , < 4.23.0.0
(semver)
|
guessed | |
| CODESYS | Control for Linux ARM SL |
Affected:
3.5.0.0 , < 4.23.0.0
(semver)
|
guessed | |
| CODESYS | Control for Linux SL |
Affected:
3.5.0.0 , < 4.23.0.0
(semver)
|
guessed | |
| CODESYS | Control for PFC100 SL |
Affected:
3.5.0.0 , < 4.23.0.0
(semver)
|
guessed | |
| CODESYS | Control for PFC200 SL |
Affected:
3.5.0.0 , < 4.23.0.0
(semver)
|
guessed | |
| CODESYS | Control for PLCnext SL |
Affected:
3.5.0.0 , < 4.23.0.0
(semver)
|
guessed | |
| CODESYS | Control for Raspberry Pi SL |
Affected:
3.5.0.0 , < 4.23.0.0
(semver)
|
guessed | |
| CODESYS | Control for WAGO Touch Panels 600 SL |
Affected:
3.5.0.0 , < 4.23.0.0
(semver)
|
guessed | |
| CODESYS | Virtual Control SL |
Affected:
3.5.0.0 , < 4.23.0.0
(semver)
|
guessed |
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},
{
"defaultStatus": "unaffected",
"product": "Control for PFC100 SL",
"vendor": "CODESYS",
"versions": [
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"lessThan": "4.23.0.0",
"status": "affected",
"version": "3.5.0.0",
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{
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}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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