ProtonVPN 1.3.3 for Windows suffers from a SYSTEM privilege escalation vulnerability through the "ProtonVPN Service" service
Published Apr 16, 2018
9.8
CRITICALCVSS 3.0
EPSS 2.45%
Description
ProtonVPN 1.3.3 for Windows suffers from a SYSTEM privilege escalation vulnerability through the "ProtonVPN Service" service. This service establishes an NetNamedPipe endpoint that allows arbitrary installed applications to connect and call publicly exposed methods. The "Connect" method accepts a class instance argument that provides attacker control of the OpenVPN command line. An attacker can specify a dynamic library plugin that should run for every new VPN connection. This plugin will execute code in the context of the SYSTEM user.
Affected products
No data.
- 1.3.3
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:H/I:H/A:H
AV:N/AC:L/Au:N/C:C/I:C/A:C
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 v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Table of values (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.45% (0.02452) | 83.81th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.54% (0.02538) | 82.86th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.26% (0.00261) | 66.21th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.26% (0.00261) | 65.43th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.28% (0.00280) | 67.67th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.25% (0.00249) | 63.87th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.36% (0.00360) | 67.78th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.19% (0.01190) | 61.79th | v2 (v2022.01.01) |
| Jan 11, 2023 | 1.19% (0.01190) | 61.07th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.09% (0.01086) | 51.85th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.09% (0.01086) | 49.83th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.09% (0.01086) | 28.42th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.73% (0.00731) | 20.40th | v1 |
| Jan 6, 2022 | 0.73% (0.00731) | 19.82th | v1 |
| Sep 1, 2021 | 0.73% (0.00731) | 49.19th | v1 |
| Apr 14, 2021 | 0.73% (0.00731) | 0.00th | v1 |
References (1)
- https://github.com/VerSprite/research/blob/master/advisories/VS-2018-017.md x_refsource_MISCThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/VerSprite/research/blob/master/advisories/VS-2018-017.md | x_refsource_MISCThird Party Advisory |
Change history (0)
No recorded changes yet.