Buffer overflow in RegAPI.DLL used by Windows NT 4.0 Terminal Server allows remote attackers to execute arbitrary commands via a long username, aka the "Terminal Server Login Buffer Overflow" vulnerability
Published Jan 22, 2001
7.5
HIGHCVSS 2.0
EPSS 16.06%
Description
Buffer overflow in RegAPI.DLL used by Windows NT 4.0 Terminal Server allows remote attackers to execute arbitrary commands via a long username, aka the "Terminal Server Login Buffer Overflow" vulnerability.
Affected products
No data.
- terminal_server
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 (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 16.06% (0.16059) | 96.82th | v5 (v2026.06.15) |
| Jun 15, 2026 | 16.06% (0.16059) | 96.49th | v5 (v2026.06.15) |
| Dec 5, 2025 | 10.23% (0.10228) | 92.87th | v4 (v2025.03.14) |
| Nov 1, 2025 | 13.28% (0.13277) | 93.90th | v4 (v2025.03.14) |
| Mar 30, 2025 | 10.23% (0.10228) | 92.41th | v4 (v2025.03.14) |
| Mar 29, 2025 | 14.70% (0.14700) | 90.84th | v4 (v2025.03.14) |
| Mar 17, 2025 | 10.23% (0.10228) | 92.56th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.16% (0.00158) | 53.57th | v3 (v2023.03.01) |
| Jun 28, 2024 | 0.16% (0.00158) | 52.50th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.16% (0.00158) | 50.48th | v3 (v2023.03.01) |
| Mar 6, 2023 | 13.53% (0.13525) | 95.77th | v2 (v2022.01.01) |
| Apr 1, 2022 | 13.53% (0.13525) | 95.40th | v2 (v2022.01.01) |
| Feb 4, 2022 | 13.53% (0.13525) | 90.66th | v2 (v2022.01.01) |
No CWE recorded.
References (4)
- http://www.securityfocus.com/archive/1/143991 mailing-listx_refsource_BUGTRAQExploitPatchVendor Advisory
- http://www.securityfocus.com/bid/1924 vdb-entryx_refsource_BIDPatchVendor Advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-087 vendor-advisoryx_refsource_MS
- https://exchange.xforce.ibmcloud.com/vulnerabilities/5489 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/archive/1/143991 | mailing-listx_refsource_BUGTRAQExploitPatchVendor Advisory | |
| http://www.securityfocus.com/bid/1924 | vdb-entryx_refsource_BIDPatchVendor Advisory | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-087 | vendor-advisoryx_refsource_MS | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/5489 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.