The Web Proxy Auto Discovery (WPAD) protocol implementation in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold and 1511, and Internet Explorer 9 through 11 has an improper fallback mechanism, which allows remote attackers to gain privileges via NetBIOS name responses, aka "WPAD Elevation of Privilege Vulnerability."
Published Jun 16, 2016
8.8
HIGHCVSS 3.0
EPSS 66.90%
Description
The Web Proxy Auto Discovery (WPAD) protocol implementation in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold and 1511, and Internet Explorer 9 through 11 has an improper fallback mechanism, which allows remote attackers to gain privileges via NetBIOS name responses, aka "WPAD Elevation of Privilege Vulnerability."
Affected products
No data.
- 9
- 10
- 11
- n/a
- 1511
- n/a
- n/a
- n/a
- n/a
- r2
- n/a
- r2
- 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.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AV:N/AC:M/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
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 1, 2026 | 66.90% (0.66904) | 99.28th | v5 (v2026.06.15) |
| Sep 22, 2026 | 66.90% (0.66904) | 99.26th | v5 (v2026.06.15) |
| Sep 21, 2026 | 62.27% (0.62273) | 99.17th | v5 (v2026.06.15) |
| Sep 6, 2026 | 66.90% (0.66904) | 99.24th | v5 (v2026.06.15) |
| Sep 5, 2026 | 62.27% (0.62273) | 99.15th | v5 (v2026.06.15) |
| Aug 30, 2026 | 66.90% (0.66904) | 99.24th | v5 (v2026.06.15) |
| Aug 28, 2026 | 62.27% (0.62273) | 99.15th | v5 (v2026.06.15) |
| Aug 24, 2026 | 66.90% (0.66904) | 99.23th | v5 (v2026.06.15) |
| Aug 23, 2026 | 62.27% (0.62273) | 99.15th | v5 (v2026.06.15) |
| Aug 3, 2026 | 66.90% (0.66904) | 99.22th | v5 (v2026.06.15) |
| Jun 15, 2026 | 70.29% (0.70288) | 99.30th | v5 (v2026.06.15) |
| Aug 24, 2025 | 78.31% (0.78311) | 98.98th | v4 (v2025.03.14) |
| Mar 30, 2025 | 74.89% (0.74890) | 98.80th | v4 (v2025.03.14) |
| Mar 29, 2025 | 71.15% (0.71149) | 98.27th | v4 (v2025.03.14) |
| Mar 17, 2025 | 74.89% (0.74890) | 98.80th | v4 (v2025.03.14) |
| Dec 12, 2024 | 90.08% (0.90077) | 98.94th | v3 (v2023.03.01) |
| Jul 16, 2024 | 90.41% (0.90409) | 98.85th | v3 (v2023.03.01) |
| Apr 8, 2024 | 90.96% (0.90962) | 98.80th | v3 (v2023.03.01) |
| Mar 6, 2024 | 92.12% (0.92124) | 98.88th | v3 (v2023.03.01) |
| Oct 23, 2023 | 92.91% (0.92905) | 98.73th | v3 (v2023.03.01) |
| Sep 16, 2023 | 93.88% (0.93879) | 98.82th | v3 (v2023.03.01) |
| Jun 28, 2023 | 94.45% (0.94452) | 98.83th | v3 (v2023.03.01) |
| Mar 7, 2023 | 95.21% (0.95210) | 98.86th | v3 (v2023.03.01) |
| Mar 6, 2023 | 34.35% (0.34346) | 97.70th | v2 (v2022.01.01) |
| Feb 4, 2022 | 34.35% (0.34346) | 96.67th | v2 (v2022.01.01) |
References (4)
- http://www.securitytracker.com/id/1036096 vdb-entryx_refsource_SECTRACK
- http://www.securitytracker.com/id/1036104 vdb-entryx_refsource_SECTRACK
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-063 vendor-advisoryx_refsource_MS
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-077 vendor-advisoryx_refsource_MS
| Link | Providers | Tags |
|---|---|---|
| http://www.securitytracker.com/id/1036096 | vdb-entryx_refsource_SECTRACK | |
| http://www.securitytracker.com/id/1036104 | vdb-entryx_refsource_SECTRACK | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-063 | vendor-advisoryx_refsource_MS | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-077 | vendor-advisoryx_refsource_MS |
Change history (0)
No recorded changes yet.