HIGH
The Windows 2000 telnet client attempts to perform NTLM authentication by default, which allows remote attackers to capture and replay the NTLM challenge/response via a telnet:// URL that points to the malicious server, aka the "Windows 2000 Telnet Client NTLM Authentication" vulnerability
Published Jan 22, 2001
7.5
HIGHCVSS 2.0
EPSS 39.61%
Description
The Windows 2000 telnet client attempts to perform NTLM authentication by default, which allows remote attackers to capture and replay the NTLM challenge/response via a telnet:// URL that points to the malicious server, aka the "Windows 2000 Telnet Client NTLM Authentication" vulnerability.
Affected products
No data.
- 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.
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
39.61% 0.39610
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.39610
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 (50 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 39.61% (0.39610) | 98.57th | v5 (v2026.06.15) |
| Jul 20, 2026 | 39.61% (0.39610) | 98.46th | v5 (v2026.06.15) |
| Jun 20, 2026 | 42.69% (0.42694) | 98.54th | v5 (v2026.06.15) |
| Jun 15, 2026 | 39.61% (0.39610) | 98.43th | v5 (v2026.06.15) |
| Mar 4, 2026 | 34.05% (0.34051) | 96.89th | v4 (v2025.03.14) |
| Mar 1, 2026 | 28.15% (0.28149) | 96.41th | v4 (v2025.03.14) |
| Feb 4, 2026 | 34.05% (0.34051) | 96.85th | v4 (v2025.03.14) |
| Feb 1, 2026 | 28.15% (0.28149) | 96.39th | v4 (v2025.03.14) |
| Jan 4, 2026 | 34.05% (0.34051) | 96.82th | v4 (v2025.03.14) |
| Jan 1, 2026 | 28.15% (0.28149) | 96.36th | v4 (v2025.03.14) |
| Dec 28, 2025 | 34.05% (0.34051) | 96.81th | v4 (v2025.03.14) |
| Dec 27, 2025 | 27.55% (0.27554) | 96.28th | v4 (v2025.03.14) |
| Dec 4, 2025 | 34.05% (0.34051) | 96.79th | v4 (v2025.03.14) |
| Dec 1, 2025 | 28.15% (0.28149) | 96.33th | v4 (v2025.03.14) |
| Nov 4, 2025 | 34.05% (0.34051) | 96.76th | v4 (v2025.03.14) |
| Nov 1, 2025 | 28.15% (0.28149) | 96.30th | v4 (v2025.03.14) |
| Oct 28, 2025 | 34.05% (0.34051) | 96.76th | v4 (v2025.03.14) |
| Oct 27, 2025 | 27.55% (0.27554) | 96.21th | v4 (v2025.03.14) |
| Oct 23, 2025 | 34.05% (0.34051) | 96.76th | v4 (v2025.03.14) |
| Oct 6, 2025 | 45.51% (0.45506) | 97.52th | v4 (v2025.03.14) |
| Oct 4, 2025 | 35.28% (0.35278) | 96.91th | v4 (v2025.03.14) |
| Oct 1, 2025 | 33.41% (0.33406) | 96.80th | v4 (v2025.03.14) |
| Sep 4, 2025 | 18.36% (0.18356) | 94.98th | v4 (v2025.03.14) |
| Sep 1, 2025 | 14.29% (0.14289) | 94.19th | v4 (v2025.03.14) |
| Aug 5, 2025 | 18.36% (0.18356) | 94.95th | v4 (v2025.03.14) |
| Aug 1, 2025 | 14.29% (0.14289) | 94.16th | v4 (v2025.03.14) |
| Jul 4, 2025 | 18.36% (0.18356) | 94.92th | v4 (v2025.03.14) |
| Jul 1, 2025 | 14.29% (0.14289) | 94.11th | v4 (v2025.03.14) |
| Jun 20, 2025 | 18.36% (0.18356) | 94.88th | v4 (v2025.03.14) |
| Jun 19, 2025 | 14.29% (0.14289) | 94.05th | v4 (v2025.03.14) |
| Jun 18, 2025 | 18.36% (0.18356) | 94.88th | v4 (v2025.03.14) |
| Jun 17, 2025 | 14.29% (0.14289) | 94.04th | v4 (v2025.03.14) |
| Jun 4, 2025 | 18.36% (0.18356) | 94.87th | v4 (v2025.03.14) |
| Jun 1, 2025 | 14.29% (0.14289) | 94.07th | v4 (v2025.03.14) |
| May 5, 2025 | 18.36% (0.18356) | 94.83th | v4 (v2025.03.14) |
| May 1, 2025 | 14.29% (0.14289) | 94.03th | v4 (v2025.03.14) |
| Apr 18, 2025 | 18.36% (0.18356) | 94.82th | v4 (v2025.03.14) |
| Apr 17, 2025 | 14.29% (0.14289) | 93.97th | v4 (v2025.03.14) |
| Apr 8, 2025 | 18.36% (0.18356) | 94.71th | v4 (v2025.03.14) |
| Apr 7, 2025 | 14.29% (0.14289) | 93.82th | v4 (v2025.03.14) |
| Apr 4, 2025 | 18.36% (0.18356) | 94.71th | v4 (v2025.03.14) |
| Apr 3, 2025 | 14.29% (0.14289) | 93.81th | v4 (v2025.03.14) |
| Mar 30, 2025 | 18.36% (0.18356) | 94.70th | v4 (v2025.03.14) |
| Mar 29, 2025 | 31.55% (0.31554) | 94.95th | v4 (v2025.03.14) |
| Mar 27, 2025 | 14.29% (0.14289) | 93.45th | v4 (v2025.03.14) |
| Mar 17, 2025 | 18.36% (0.18356) | 94.72th | v4 (v2025.03.14) |
| Dec 12, 2024 | 2.67% (0.02672) | 90.80th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.67% (0.02672) | 88.77th | v3 (v2023.03.01) |
| Mar 6, 2023 | 25.60% (0.25598) | 97.01th | v2 (v2022.01.01) |
| Feb 4, 2022 | 25.60% (0.25598) | 95.57th | v2 (v2022.01.01) |
Weaknesses (0)
No CWE recorded.
References (4)
- http://www.atstake.com/research/advisories/2000/a091400-1.txt vendor-advisoryx_refsource_ATSTAKE
- http://www.securityfocus.com/bid/1683 vdb-entryx_refsource_BIDExploitPatchVendor Advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-067 vendor-advisoryx_refsource_MS
- https://exchange.xforce.ibmcloud.com/vulnerabilities/5242 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://www.atstake.com/research/advisories/2000/a091400-1.txt | vendor-advisoryx_refsource_ATSTAKE | |
| http://www.securityfocus.com/bid/1683 | vdb-entryx_refsource_BIDExploitPatchVendor Advisory | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-067 | vendor-advisoryx_refsource_MS | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/5242 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jan 22, 2001
Updated Aug 8, 2024
Reserved Oct 15, 2000
Link CVE-2000-0834
CISA Vulnrichment
Updated n/a