HIGH
CODESYS: Incorrect calculation of buffer size can cause DoS on CODESYS OPC UA products
Published Jun 4, 2024
7.5
HIGHCVSS 3.1
EPSS 0.57%
Description
An unauthenticated remote attacker can use a malicious OPC UA client to send a crafted request to affected CODESYS products which can cause a DoS due to incorrect calculation of buffer size.
Affected products
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- Version 0StatusaffectedConstraints<3.5.20.10
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- Version 0StatusaffectedConstraints<3.5.20.10
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- Version 0StatusaffectedConstraints<3.5.20.10
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- Version 0StatusaffectedConstraints<4.12.0.0
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- Version 0StatusaffectedConstraints<4.12.0.0
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- Version 0StatusaffectedConstraints<4.12.0.0
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- Version 0StatusaffectedConstraints<4.12.0.0
- Version
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- Version 0StatusaffectedConstraints<4.12.0.0
- Version
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- Version 0StatusaffectedConstraints<4.12.0.0
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- Version 0StatusaffectedConstraints<4.12.0.0
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- Version 0StatusaffectedConstraints<4.12.0.0
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- Version 0StatusaffectedConstraints<4.12.0.0
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- Version 0StatusaffectedConstraints<4.12.0.0
- Version
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- Version 0StatusaffectedConstraints<3.5.20.10
- Version
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- Version 0StatusaffectedConstraints<3.5.20.10
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Codesys | CODESYS Control RTE (SL) | unaffected |
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| Codesys | CODESYS Control RTE (for Beckhoff CX) SL | unaffected |
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| Codesys | CODESYS Control Win (SL) | unaffected |
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| Codesys | CODESYS Control for BeagleBone SL | unaffected |
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| Codesys | CODESYS Control for IOT2000 SL | unaffected |
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| Codesys | CODESYS Control for Linux ARM SL | unaffected |
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| Codesys | CODESYS Control for Linux SL | unaffected |
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| Codesys | CODESYS Control for PFC100 SL | unaffected |
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| Codesys | CODESYS Control for PFC200 SL | unaffected |
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| Codesys | CODESYS Control for PLCnext SL | unaffected |
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| Codesys | CODESYS Control for Raspberry Pi SL | unaffected |
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| Codesys | CODESYS Control for WAGO Touch Panels 600 SL | unaffected |
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| Codesys | CODESYS Control for emPC-A/iMX6 SL | unaffected |
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| Codesys | Codesys Hmi (sl) | unaffected |
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| Codesys | CODESYS Runtime Toolkit | unaffected |
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No data.
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- Version 0StatusaffectedConstraints<4.12.0.0
- Version
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- Version 0StatusaffectedConstraints<4.12.0.0
- Version
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- Version 0StatusaffectedConstraints<4.12.0.0
- Version
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- Version 0StatusaffectedConstraints<4.12.0.0
- Version
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- Version 0StatusaffectedConstraints<4.12.0.0
- Version
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- Version 0StatusaffectedConstraints<4.12.0.0
- Version
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- Version 0StatusaffectedConstraints<4.12.0.0
- Version
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- Version 0StatusaffectedConstraints<4.12.0.0
- Version
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- Version 0StatusaffectedConstraints<4.12.0.0
- Version
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- Version 0StatusaffectedConstraints<3.5.20.10
- Version
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- Version 0StatusaffectedConstraints<3.5.20.10
- Version
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- Version 0StatusaffectedConstraints<3.5.20.10
- Version
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- Version 0StatusaffectedConstraints<3.5.20.10
- Version
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- Version 0StatusaffectedConstraints<3.5.20.10
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Codesys | Control for Beaglebone SL | n/a |
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| Codesys | Control for Empc-A\/imx6 SL | n/a |
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| Codesys | Control for Iot2000 SL | n/a |
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| Codesys | Control for Linux ARM SL | n/a |
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| Codesys | Control for Linux SL | n/a |
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| Codesys | Control for Pfc200 SL | n/a |
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| Codesys | Control for Plcnext SL | n/a |
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| Codesys | Control for Raspberry PI SL | n/a |
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| Codesys | Control for Wago Touch Panels 600 SL | n/a |
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| Codesys | Control Rte \(for Beckhoff Cx\) SL | n/a |
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| Codesys | Control Rte \(sl\) | n/a |
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| Codesys | Control Win \(sl\) | n/a |
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| Codesys | Hmi \(sl\) | n/a |
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| Codesys | Runtime Toolkit | n/a |
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No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
7.5 HIGH CVE.org
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
PartialDecision
n/aAssessed Jun 6, 2024 · SSVC 2.0.3
0.57% 0.00569
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.00569
Score over time
2024–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (5 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.57% (0.00569) | 45.07th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.57% (0.00569) | 42.40th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.45% (0.00450) | 61.56th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00043) | 10.81th | v3 (v2023.03.01) |
| Jun 5, 2024 | 0.04% (0.00043) | 7.66th | v3 (v2023.03.01) |
Weaknesses (1)
References (2)
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner CERTVDE
Published Jun 4, 2024
Updated Aug 1, 2024
Reserved May 16, 2024
Link CVE-2024-5000
CISA Vulnrichment
Updated Jun 6, 2024