In startLegacyVpnPrivileged of Vpn.java, there is a possible way to retrieve VPN credentials due to a protocol downgrade attack
Published Jun 15, 2022
9.8
CRITICALCVSS 3.1
EPSS 7.04%
Description
In startLegacyVpnPrivileged of Vpn.java, there is a possible way to retrieve VPN credentials due to a protocol downgrade attack. This could lead to remote escalation of privilege if a malicious Wi-Fi AP is used, with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-201660636
Affected products
- Vendor n/a Product Android Defaultn/a
- Version Android-11StatusaffectedConstraints-
- 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 | Android | 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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
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 3, 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 (25 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 7.04% (0.07037) | 94.00th | v5 (v2026.06.15) |
| Jun 15, 2026 | 6.41% (0.06409) | 92.77th | v5 (v2026.06.15) |
| Nov 21, 2025 | 7.25% (0.07253) | 91.25th | v4 (v2025.03.14) |
| Nov 18, 2025 | 1.18% (0.01182) | 76.95th | v4 (v2025.03.14) |
| Oct 18, 2025 | 7.25% (0.07253) | 91.18th | v4 (v2025.03.14) |
| Aug 30, 2025 | 8.99% (0.08991) | 92.28th | v4 (v2025.03.14) |
| Jul 28, 2025 | 33.55% (0.33548) | 96.74th | v4 (v2025.03.14) |
| Jul 9, 2025 | 34.88% (0.34878) | 96.83th | v4 (v2025.03.14) |
| Jun 20, 2025 | 37.02% (0.37019) | 96.96th | v4 (v2025.03.14) |
| Jun 8, 2025 | 43.52% (0.43518) | 97.34th | v4 (v2025.03.14) |
| Apr 11, 2025 | 50.07% (0.50069) | 97.61th | v4 (v2025.03.14) |
| Mar 30, 2025 | 48.69% (0.48692) | 97.52th | v4 (v2025.03.14) |
| Mar 29, 2025 | 39.63% (0.39631) | 95.94th | v4 (v2025.03.14) |
| Mar 17, 2025 | 48.69% (0.48692) | 97.48th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.12% (0.00120) | 47.95th | v3 (v2023.03.01) |
| Jan 6, 2024 | 0.12% (0.00121) | 46.09th | v3 (v2023.03.01) |
| Nov 26, 2023 | 0.14% (0.00135) | 48.68th | v3 (v2023.03.01) |
| Jul 18, 2023 | 0.15% (0.00155) | 50.94th | v3 (v2023.03.01) |
| Jun 22, 2023 | 0.18% (0.00176) | 53.57th | v3 (v2023.03.01) |
| May 16, 2023 | 0.11% (0.00106) | 42.00th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.09% (0.00092) | 37.65th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.16% (0.01156) | 61.37th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.16% (0.01156) | 61.36th | v2 (v2022.01.01) |
| Jun 25, 2022 | 1.16% (0.01156) | 59.21th | v2 (v2022.01.01) |
| Jun 16, 2022 | 2.72% (0.02722) | 81.61th | v2 (v2022.01.01) |
No CWE recorded.
References (1)
- https://source.android.com/security/bulletin/2022-06-01 x_refsource_MISCVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://source.android.com/security/bulletin/2022-06-01 | x_refsource_MISCVendor Advisory |
Change history (0)
No recorded changes yet.