A vulnerability has been identified in SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl
Published Mar 10, 2020
7.5
HIGHCVSS 3.1
EPSS 1.68%
Description
A vulnerability has been identified in SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions >= V2.5 and < V20.8), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions >= V2.5 and < V2.8), SIMATIC S7-1500 Software Controller (All versions >= V2.5 and < V20.8). Affected devices contain a vulnerability that allows an unauthenticated attacker to trigger a Denial-of-Service condition. The vulnerability can be triggered if specially crafted UDP packets are sent to the device. The security vulnerability could be exploited by an attacker with network access to the affected systems. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise the device availability.
Affected products
- Vendor Siemens AG Product SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) Defaultn/a
- Version All versions >= V2.5 and < V20.8StatusaffectedConstraints-
- Version
- Vendor Siemens AG Product SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) Defaultn/a
- Version All versions >= V2.5 and < V2.8StatusaffectedConstraints-
- Version
-
- Version All versions >= V2.5 and < V20.8StatusaffectedConstraints-
- 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Siemens AG | SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) | n/a |
| ||||||
| Siemens AG | SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) | n/a |
| ||||||
| Siemens AG | SIMATIC S7-1500 Software Controller | n/a |
|
Configuration 1
- ≥ 2.5 · < 20.8
Running on/with
- n/a
Configuration 2
- ≥ 2.5 · < 2.8
Running on/with
- n/a
Configuration 3
- ≥ 2.5 · < 2.8
Running on/with
- n/a
Configuration 4
- ≥ 2.5 · < 2.8
Running on/with
- n/a
Configuration 5
- ≥ 2.5 · < 2.8
Running on/with
- n/a
Configuration 6
- ≥ 2.5 · < 2.8
Running on/with
- n/a
Configuration 7
- ≥ 2.5 · < 2.8
Running on/with
- n/a
Configuration 8
- ≥ 2.5 · < 2.8
Running on/with
- n/a
Configuration 9
- ≥ 2.5 · < 2.8
Running on/with
- n/a
Configuration 10
- ≥ 2.5 · < 2.8
Running on/with
- n/a
Configuration 11
- ≥ 2.5 · < 20.8
Running on/with
- n/a
Configuration 12
- ≥ 2.5 · < 20.8
Running on/with
- n/a
Configuration 13
- ≥ 2.5 · < 20.8
Running on/with
- n/a
Configuration 14
- ≥ 2.5 · < 20.8
Running on/with
- n/a
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:N/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:C
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
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.68% (0.01677) | 76.04th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.64% (0.01636) | 73.15th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.12% (0.00124) | 47.47th | v3 (v2023.03.01) |
| Jun 15, 2024 | 0.12% (0.00124) | 47.17th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.12% (0.00124) | 45.17th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.50% (0.04499) | 74.08th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.74% (0.02742) | 63.06th | v1 |
| Jan 6, 2022 | 2.74% (0.02742) | 62.72th | v1 |
| Sep 1, 2021 | 0.62% (0.00624) | 45.04th | v1 |
| Apr 14, 2021 | 0.62% (0.00624) | 0.00th | v1 |
References (2)
- https://cert-portal.siemens.com/productcert/pdf/ssa-750824.pdf x_refsource_MISCVendor Advisory
- https://www.us-cert.gov/ics/advisories/icsa-20-042-11 x_refsource_MISC
| Link | Providers | Tags |
|---|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-750824.pdf | x_refsource_MISCVendor Advisory | |
| https://www.us-cert.gov/ics/advisories/icsa-20-042-11 | x_refsource_MISC |
Change history (0)
No recorded changes yet.