The default configuration of Microsoft Windows uses the Web Proxy Autodiscovery Protocol (WPAD) without static WPAD entries, which might allow remote attackers to intercept web traffic by registering a proxy server using WINS or DNS, then responding to WPAD requests, as demonstrated using Internet Explorer
Published Mar 26, 2007
7.5
HIGHCVSS 2.0
EPSS 15.25%
Description
The default configuration of Microsoft Windows uses the Web Proxy Autodiscovery Protocol (WPAD) without static WPAD entries, which might allow remote attackers to intercept web traffic by registering a proxy server using WINS or DNS, then responding to WPAD requests, as demonstrated using Internet Explorer. NOTE: it could be argued that if an attacker already has control over WINS/DNS, then web traffic could already be intercepted by modifying WINS or DNS records, so this would not cross privilege boundaries and would not be a vulnerability. It has also been reported that DHCP is an alternate attack vector.
Affected products
No data.
- n/a
- 2000
- r2
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.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/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
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (24 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 15.25% (0.15254) | 96.67th | v5 (v2026.06.15) |
| Jun 15, 2026 | 15.25% (0.15254) | 96.33th | v5 (v2026.06.15) |
| Mar 25, 2026 | 35.54% (0.35540) | 97.02th | v4 (v2025.03.14) |
| Oct 23, 2025 | 27.87% (0.27874) | 96.22th | v4 (v2025.03.14) |
| Oct 1, 2025 | 32.54% (0.32542) | 96.72th | v4 (v2025.03.14) |
| Mar 30, 2025 | 27.43% (0.27428) | 95.99th | v4 (v2025.03.14) |
| Mar 29, 2025 | 30.45% (0.30452) | 94.79th | v4 (v2025.03.14) |
| Mar 17, 2025 | 27.43% (0.27428) | 96.00th | v4 (v2025.03.14) |
| Dec 17, 2024 | 33.63% (0.33632) | 97.08th | v3 (v2023.03.01) |
| Nov 29, 2024 | 69.10% (0.69096) | 98.10th | v3 (v2023.03.01) |
| Oct 5, 2024 | 66.25% (0.66255) | 97.98th | v3 (v2023.03.01) |
| May 21, 2024 | 70.39% (0.70394) | 98.02th | v3 (v2023.03.01) |
| Apr 13, 2024 | 64.16% (0.64160) | 97.82th | v3 (v2023.03.01) |
| Mar 6, 2024 | 49.49% (0.49491) | 97.42th | v3 (v2023.03.01) |
| Jan 28, 2024 | 27.30% (0.27295) | 96.36th | v3 (v2023.03.01) |
| Dec 21, 2023 | 14.51% (0.14512) | 95.23th | v3 (v2023.03.01) |
| Nov 13, 2023 | 13.60% (0.13598) | 95.04th | v3 (v2023.03.01) |
| Oct 6, 2023 | 10.51% (0.10506) | 94.34th | v3 (v2023.03.01) |
| Aug 28, 2023 | 2.66% (0.02657) | 89.04th | v3 (v2023.03.01) |
| Apr 1, 2023 | 1.68% (0.01681) | 85.78th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.55% (0.01555) | 85.11th | v3 (v2023.03.01) |
| Mar 6, 2023 | 21.54% (0.21544) | 96.56th | v2 (v2022.01.01) |
| Apr 1, 2022 | 21.54% (0.21544) | 96.28th | v2 (v2022.01.01) |
| Feb 4, 2022 | 21.54% (0.21544) | 94.19th | v2 (v2022.01.01) |
References (6)
- http://archives.neohapsis.com/archives/isn/2007-q1/0418.html mailing-listx_refsource_MLIST
- http://isc.sans.org/diary.html?storyid=2517 x_refsource_MISC
- http://news.com.com/Windows+weakness+can+lead+to+network+traffic+hijacks/2100-1002_3-6170229.html x_refsource_MISC
- http://support.microsoft.com/kb/934864 vendor-advisoryx_refsource_MSKB
- http://www.vupen.com/english/advisories/2007/1115 vdb-entryx_refsource_VUPENVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/33244 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://archives.neohapsis.com/archives/isn/2007-q1/0418.html | mailing-listx_refsource_MLIST | |
| http://isc.sans.org/diary.html?storyid=2517 | x_refsource_MISC | |
| http://news.com.com/Windows+weakness+can+lead+to+network+traffic+hijacks/2100-1002_3-6170229.html | x_refsource_MISC | |
| http://support.microsoft.com/kb/934864 | vendor-advisoryx_refsource_MSKB | |
| http://www.vupen.com/english/advisories/2007/1115 | vdb-entryx_refsource_VUPENVendor Advisory | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/33244 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.