A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3), SIMATIC PDM (All versions < V9.2), SIMATIC STEP 7 V5.X (All versions < V5.6 SP2 HF3), SINAMICS STARTER (containing STEP 7 OEM version) (All versions < V5.4 HF2)
Published Jun 10, 2020
7.8
HIGHCVSS 3.1
EPSS 0.42%
Description
A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3), SIMATIC PDM (All versions < V9.2), SIMATIC STEP 7 V5.X (All versions < V5.6 SP2 HF3), SINAMICS STARTER (containing STEP 7 OEM version) (All versions < V5.4 HF2). A buffer overflow vulnerability could allow a local attacker to cause a Denial-of-Service situation. The security vulnerability could be exploited by an attacker with local access to the affected systems. Successful exploitation requires user privileges but no user interaction. The vulnerability could allow an attacker to compromise the availability of the system as well as to have access to confidential information.
Affected products
-
- Version All versionsStatusaffectedConstraints-
- Version
-
- Version All versions < V9.0 SP3StatusaffectedConstraints-
- Version
-
- Version All versions < V9.2StatusaffectedConstraints-
- Version
-
- Version All versions < V5.6 SP2 HF3StatusaffectedConstraints-
- Version
-
- Version All versions < V5.4 HF2StatusaffectedConstraints-
- 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 PCS 7 V8.2 and earlier | n/a |
| ||||||
| Siemens | Simatic Pcs 7 V9.0 | n/a |
| ||||||
| Siemens | Simatic Pdm | n/a |
| ||||||
| Siemens | Simatic Step 7 V5.x | n/a |
| ||||||
| Siemens | SINAMICS STARTER (containing STEP 7 OEM version) | n/a |
|
- n/a
- n/a
- < 5.6
- 5.6
- 5.6
- 5.6
- 5.6
- < 5.4
- 5.4
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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:P/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 4, 2026.
Score over time
2021-2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (10 key points)
Flat stretches are collapsed. Showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 4, 2026 | 0.42% (0.00423) | 34.36th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.42% (0.00423) | 36.22th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.05% (0.00052) | 21.10th | v3 (v2023.03.01) |
| May 1, 2024 | 0.05% (0.00052) | 19.43th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00045) | 12.45th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00890) | 30.33th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00890) | 26.62th | v2 (v2022.01.01) |
| Jan 6, 2022 | 1.96% (0.01960) | 49.57th | v1 |
| Jan 5, 2022 | 0.44% (0.00444) | 29.04th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.33% (0.00332) | 0.00th | v1 |
References (3)
- https://cert-portal.siemens.com/productcert/pdf/ssa-689942.pdf x_refsource_MISCVendor Advisory
- https://us-cert.cisa.gov/ics/advisories/icsa-20-161-05 x_refsource_CONFIRM
- https://www.us-cert.gov/ics/advisories/icsa-20-161-05 x_refsource_MISCThird Party AdvisoryUS Government Resource
| Link | Providers | Tags |
|---|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-689942.pdf | x_refsource_MISCVendor Advisory | |
| https://us-cert.cisa.gov/ics/advisories/icsa-20-161-05 | x_refsource_CONFIRM | |
| https://www.us-cert.gov/ics/advisories/icsa-20-161-05 | x_refsource_MISCThird Party AdvisoryUS Government Resource |
Change history (0)
No recorded changes yet.