An exploitable improper host validation vulnerability exists in the Cloud Connectivity functionality of WAGO PFC200 Firmware versions 03.02.02(14), 03.01.07(13), and 03.00.39(12)
Published Mar 10, 2020
9.1
CRITICALCVSS 3.1
EPSS 2.67%
Description
An exploitable improper host validation vulnerability exists in the Cloud Connectivity functionality of WAGO PFC200 Firmware versions 03.02.02(14), 03.01.07(13), and 03.00.39(12). A specially crafted HTTPS POST request can cause the software to connect to an unauthorized host, resulting in unauthorized access to firmware update functionality. An attacker can send an authenticated HTTPS POST request to direct the Cloud Connectivity software to connect to an attacker controlled Azure IoT Hub node.
Affected products
-
- Version version 03.00.39(12)StatusaffectedConstraints-
- Version version 03.01.07(13)StatusaffectedConstraints-
- Version version 03.02.02(14)StatusaffectedConstraints-
- 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 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wago | WAGO PFC200 Firmware | n/a |
|
- 03.00.39\(12\)
- 03.01.07\(13\)
- 03.02.02\(14\)
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:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:S/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 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 2.67% (0.02672) | 85.26th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.67% (0.02672) | 83.75th | v5 (v2026.06.15) |
| Mar 30, 2025 | 2.15% (0.02153) | 82.74th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.37% (0.04373) | 81.26th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.62% (0.02617) | 84.64th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.08% (0.00077) | 33.60th | v3 (v2023.03.01) |
| Jun 21, 2024 | 0.08% (0.00077) | 33.31th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.08% (0.00077) | 31.29th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 9.03% (0.09029) | 86.86th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.84% (0.01840) | 47.83th | v5 (v2026.06.15) |
| Jan 6, 2022 | 1.84% (0.01840) | 47.32th | v1 |
| Sep 1, 2021 | 0.42% (0.00416) | 25.53th | v1 |
| Apr 14, 2021 | 0.42% (0.00416) | 0.00th | v1 |
No CWE recorded.
References (1)
- https://talosintelligence.com/vulnerability_reports/TALOS-2019-0953 x_refsource_MISCExploitThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://talosintelligence.com/vulnerability_reports/TALOS-2019-0953 | x_refsource_MISCExploitThird Party Advisory |
Change history (0)
No recorded changes yet.