The Siemens SIMATIC S7-1200 2.x PLC does not properly protect the private key of the SIMATIC CONTROLLER Certification Authority certificate, which allows remote attackers to spoof the S7-1200 web server by using this key to create a forged certificate
Published Sep 25, 2012
4.3
MEDIUMCVSS 2.0
EPSS 1.47%
Description
The Siemens SIMATIC S7-1200 2.x PLC does not properly protect the private key of the SIMATIC CONTROLLER Certification Authority certificate, which allows remote attackers to spoof the S7-1200 web server by using this key to create a forged certificate.
Affected products
No data.
Configuration 1
- ≥ 2.0.0 · < 3.0.0
Running on/with
- n/a
Configuration 2
- ≥ 2.0.0 · < 3.0.0
Running on/with
- n/a
Configuration 3
- ≥ 2.0.0 · < 3.0.0
Running on/with
- n/a
Configuration 4
- ≥ 2.0.0 · < 3.0.0
Running on/with
- n/a
Configuration 5
- ≥ 2.0.0 · < 3.0.0
Running on/with
- n/a
Configuration 6
- ≥ 2.0.0 · < 3.0.0
Running on/with
- n/a
Configuration 7
- ≥ 2.0.0 · < 3.0.0
Running on/with
- n/a
Configuration 8
- ≥ 2.0.0 · < 3.0.0
Running on/with
- n/a
Configuration 9
- ≥ 2.0.0 · < 3.0.0
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.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:N/A:N
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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.47% (0.01472) | 72.84th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.48% (0.01478) | 70.43th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.06% (0.01064) | 75.69th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.11% (0.02107) | 73.46th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.06% (0.01064) | 76.14th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.18% (0.00176) | 56.05th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.18% (0.00185) | 55.14th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.17% (0.00173) | 53.46th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.17% (0.00165) | 51.85th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.18% (0.00176) | 52.95th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.14% (0.01136) | 59.45th | v2 (v2022.01.01) |
| Oct 18, 2022 | 1.14% (0.01136) | 58.28th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.14% (0.01136) | 56.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.14% (0.01136) | 34.23th | v2 (v2022.01.01) |
References (3)
- http://en.securitylab.ru/lab/PT-2012-48 Third Party Advisory
- http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-240718.pdf Broken LinkVendor Advisory
- http://www.us-cert.gov/control_systems/pdf/ICSA-12-263-01.pdf Broken LinkThird Party AdvisoryUS Government Resource
| Link | Providers | Tags |
|---|---|---|
| http://en.securitylab.ru/lab/PT-2012-48 | Third Party Advisory | |
| http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-240718.pdf | Broken LinkVendor Advisory | |
| http://www.us-cert.gov/control_systems/pdf/ICSA-12-263-01.pdf | Broken LinkThird Party AdvisoryUS Government Resource |
Change history (0)
No recorded changes yet.