CODESYS runtime system prone to denial of service due to use of out of range pointer
Published Jun 24, 2022
8.1
HIGHCVSS 3.1
EPSS 1.05%
Description
Multiple CODESYS Products are prone to a out-of bounds read or write access. A low privileged remote attacker may craft a request with invalid offset, which can cause an out-of-bounds read or write access, resulting in denial-of-service condition or local memory overwrite, which can lead to a change of local files. User interaction is not required.
Affected products
-
- Version V2StatusaffectedConstraints<V2.4.7.57
- Version
-
- Version V2StatusaffectedConstraints<V2.4.7.57
- 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 | PLCWinNT | n/a |
| ||||||
| Codesys | Runtime Toolkit | n/a |
|
- ≥ 2.0 · < 2.4.7.57
- ≥ 2.0 · < 2.4.7.57
No data.
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:S/C:N/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.05% (0.01053) | 63.08th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.90% (0.00899) | 54.78th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.42% (0.00423) | 60.02th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.16% (0.00158) | 53.55th | v3 (v2023.03.01) |
| Jan 15, 2024 | 0.16% (0.00158) | 52.12th | v3 (v2023.03.01) |
| Jul 1, 2023 | 0.12% (0.00124) | 45.70th | v3 (v2023.03.01) |
| May 25, 2023 | 0.08% (0.00079) | 32.56th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.07% (0.00068) | 27.58th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Jan 25, 2023 | 1.05% (0.01055) | 51.45th | v2 (v2022.01.01) |
| Jun 25, 2022 | 1.05% (0.01055) | 49.44th | v2 (v2022.01.01) |
References (1)
- https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=17139&token=ec67d15a433b61c77154166c20c78036540cacb0&download= x_refsource_CONFIRMMitigationVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=17139&token=ec67d15a433b61c77154166c20c78036540cacb0&download= | x_refsource_CONFIRMMitigationVendor Advisory |
Change history (0)
No recorded changes yet.