Siemens SIMATIC Logon prior to V1.5 SP3 Update 2 could allow an attacker with knowledge of a valid user name, and physical or network access to the affected system, to bypass the application-level authentication
Published Feb 22, 2017
9.0
CRITICALCVSS 3.0
EPSS 1.99%
Description
Siemens SIMATIC Logon prior to V1.5 SP3 Update 2 could allow an attacker with knowledge of a valid user name, and physical or network access to the affected system, to bypass the application-level authentication.
Affected products
- Vendor n/a Product SIMATIC Logon All versions < V1.5 SP3 Update 2 Defaultn/a
- Version SIMATIC Logon All versions < V1.5 SP3 Update 2StatusaffectedConstraints-
- 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | SIMATIC Logon All versions < V1.5 SP3 Update 2 | n/a |
|
- ≤ 1.5
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:H/PR:N/UI:N/S:C/C:H/I:H/A:H
AV:N/AC:M/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 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% (0.01987) | 79.86th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.99% (0.01987) | 77.95th | v5 (v2026.06.15) |
| Apr 27, 2025 | 1.71% (0.01711) | 81.29th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.17% (0.00169) | 54.18th | v3 (v2023.03.01) |
| Jul 10, 2024 | 0.17% (0.00169) | 54.08th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.17% (0.00169) | 52.02th | 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/96208 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-931064.pdf x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/96208 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-931064.pdf | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.