Web Extender Client (WEC) in Microsoft Office 2000, Windows 2000, and Windows Me does not properly process Internet Explorer security settings for NTLM authentication, which allows attackers to obtain NTLM credentials and possibly obtain the password, aka the "Web Client NTLM Authentication" vulnerability
Published May 7, 2001
5.0
MEDIUMCVSS 2.0
EPSS 7.37%
Description
Web Extender Client (WEC) in Microsoft Office 2000, Windows 2000, and Windows Me does not properly process Internet Explorer security settings for NTLM authentication, which allows attackers to obtain NTLM credentials and possibly obtain the password, aka the "Web Client NTLM Authentication" vulnerability.
Affected products
No data.
Configuration 2
- n/a
- n/a
- 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.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:N/A:N
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 (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 7.37% (0.07371) | 94.23th | v5 (v2026.06.15) |
| Jun 15, 2026 | 7.37% (0.07371) | 93.60th | v5 (v2026.06.15) |
| Dec 28, 2025 | 28.72% (0.28716) | 96.37th | v4 (v2025.03.14) |
| Dec 27, 2025 | 16.14% (0.16137) | 94.61th | v4 (v2025.03.14) |
| Oct 28, 2025 | 28.72% (0.28716) | 96.30th | v4 (v2025.03.14) |
| Oct 27, 2025 | 16.14% (0.16137) | 94.53th | v4 (v2025.03.14) |
| Oct 23, 2025 | 28.72% (0.28716) | 96.30th | v4 (v2025.03.14) |
| Oct 1, 2025 | 36.28% (0.36281) | 97.00th | v4 (v2025.03.14) |
| Mar 30, 2025 | 16.14% (0.16137) | 94.24th | v4 (v2025.03.14) |
| Mar 29, 2025 | 13.62% (0.13624) | 90.39th | v4 (v2025.03.14) |
| Mar 19, 2025 | 16.14% (0.16137) | 94.00th | v4 (v2025.03.14) |
| Mar 17, 2025 | 13.57% (0.13573) | 93.69th | v4 (v2025.03.14) |
| Dec 17, 2024 | 2.41% (0.02411) | 89.62th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.48% (0.00485) | 75.27th | v3 (v2023.03.01) |
| Apr 7, 2023 | 0.48% (0.00485) | 72.36th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.73% (0.00731) | 77.77th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.70% (0.04700) | 89.19th | v2 (v2022.01.01) |
| Apr 1, 2022 | 4.70% (0.04700) | 88.10th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.70% (0.04700) | 74.46th | v2 (v2022.01.01) |
No CWE recorded.
References (3)
- http://www.securityfocus.com/bid/2199 vdb-entryx_refsource_BIDPatchVendor Advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-001 vendor-advisoryx_refsource_MS
- https://exchange.xforce.ibmcloud.com/vulnerabilities/5920 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/2199 | vdb-entryx_refsource_BIDPatchVendor Advisory | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-001 | vendor-advisoryx_refsource_MS | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/5920 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.