A vulnerability has been identified in SIMATIC S7-1500 CPU (All versions >= V2.0 and < V2.5), SIMATIC S7-1500 CPU (All versions <= V1.8.5)
Published Apr 17, 2019
7.5
HIGHCVSS 3.0
EPSS 1.99%
Description
A vulnerability has been identified in SIMATIC S7-1500 CPU (All versions >= V2.0 and < V2.5), SIMATIC S7-1500 CPU (All versions <= V1.8.5). Specially crafted network packets sent to port 80/tcp or 443/tcp could allow an unauthenticated remote attacker to cause a Denial-of-Service condition of the device. The security vulnerability could be exploited by an attacker with network access to the affected systems on port 80/tcp or 443/tcp. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise availability of the device. At the time of advisory publication no public exploitation of this security vulnerability was known.
Affected products
-
- Version All versions <= V1.8.5StatusaffectedConstraints-
- Version All versions >= V2.0 and < V2.5StatusaffectedConstraints-
- 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 | Simatic S7-1500 Cpu | n/a |
|
- ≤ 1.8.5
- ≥ 2.0 · < 2.5
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.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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 v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.99% (0.01986) | 79.85th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.99% (0.01986) | 77.94th | v5 (v2026.06.15) |
| Mar 29, 2025 | 2.10% (0.02095) | 73.39th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.21% (0.00215) | 60.01th | v3 (v2023.03.01) |
| Jun 13, 2024 | 0.21% (0.00215) | 59.73th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.21% (0.00215) | 57.72th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.05% (0.01055) | 50.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.05% (0.01055) | 27.52th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.52% (0.00523) | 12.55th | v1 |
| Jan 6, 2022 | 0.52% (0.00523) | 12.10th | v1 |
| Sep 1, 2021 | 0.52% (0.00523) | 32.27th | v1 |
| Apr 14, 2021 | 0.52% (0.00523) | 0.00th | v1 |
References (1)
- https://cert-portal.siemens.com/productcert/pdf/ssa-180635.pdf x_refsource_MISCVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-180635.pdf | x_refsource_MISCVendor Advisory |
Change history (0)
No recorded changes yet.