A vulnerability has been identified in SIMATIC S7-1200 (All versions), SIMATIC S7-1500 (All Versions < V2.6)
Published Dec 13, 2018
7.5
HIGHCVSS 3.0
EPSS 1.80%
Description
A vulnerability has been identified in SIMATIC S7-1200 (All versions), SIMATIC S7-1500 (All Versions < V2.6). An attacker could exhaust the available connection pool of an affected device by opening a sufficient number of connections to the device. Successful exploitation requires an attacker to be able to send packets to port 102/tcp of the affected device. No user interaction and no user privileges are required to exploit the vulnerability. The vulnerability, if exploited, could cause a Denial-of-Service condition impacting the availability of the system. At the time of advisory publication no public exploitation of this vulnerability was known.
Affected products
-
- Version SIMATIC S7-1200 : All versionsStatusaffectedConstraints-
- Version SIMATIC S7-1500 : All Versions < V2.6StatusaffectedConstraints-
- 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 S7-1200, Simatic S7-1500 | n/a |
|
Configuration 1
- n/a
Running on/with
- n/a
Configuration 2
- < 2.6
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: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 2, 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 2, 2026 | 1.80% (0.01799) | 77.71th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.80% (0.01799) | 75.56th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.10% (0.00095) | 40.51th | v3 (v2023.03.01) |
| May 5, 2024 | 0.10% (0.00095) | 39.64th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.11% (0.00112) | 42.92th | 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 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.62% (0.00624) | 17.80th | v1 |
| Jan 6, 2022 | 0.62% (0.00624) | 17.24th | v1 |
| Sep 1, 2021 | 0.62% (0.00624) | 45.04th | v1 |
| Apr 14, 2021 | 0.62% (0.00624) | 0.00th | v1 |
References (2)
- http://www.securityfocus.com/bid/105928 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://cert-portal.siemens.com/productcert/pdf/ssa-584286.pdf x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/105928 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://cert-portal.siemens.com/productcert/pdf/ssa-584286.pdf | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.