# CVE-2000-1149: CVE-2000-1149

Status: published. Published: 2001-01-09. Updated: 2026-11-12.

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.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: cve@mitre.org) — http://www.securityfocus.com/archive/1/143991
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: cve@mitre.org) — http://www.securityfocus.com/bid/1924
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: af854a3a-2127-422b-91ae-364da2661108) — http://www.securityfocus.com/archive/1/143991
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: af854a3a-2127-422b-91ae-364da2661108) — http://www.securityfocus.com/bid/1924

## Affected products and versions

- microsoft / windows_nt: terminal_server (affected, custom). Source: NVD

## NVD configuration conditions

Affected CPE matches depend on the following AND/OR and negation conditions:

```json
[
  {
    "negate": false,
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:o:microsoft:windows_nt:terminal_server:*:*:*:*:*:*:*",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ],
    "operator": "OR"
  }
]
```

## Severity and prioritization

- CVSS 2.0: 7.5 (high); AV:N/AC:L/Au:N/C:P/I:P/A:P; source: NVD: nvd@nist.gov

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: Not reported

## Exploit evidence

- exploit: http://www.securityfocus.com/archive/1/143991 (cve@mitre.org)
- exploit: http://www.securityfocus.com/archive/1/143991 (af854a3a-2127-422b-91ae-364da2661108)

## References

- http://www.securityfocus.com/archive/1/143991 (cve@mitre.org; Exploit, Patch, Vendor Advisory)

- http://www.securityfocus.com/bid/1924 (cve@mitre.org; Patch, Vendor Advisory)

- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-087 (cve@mitre.org)

- https://exchange.xforce.ibmcloud.com/vulnerabilities/5489 (cve@mitre.org)

- http://www.securityfocus.com/archive/1/143991 (af854a3a-2127-422b-91ae-364da2661108; Exploit, Patch, Vendor Advisory)

- http://www.securityfocus.com/bid/1924 (af854a3a-2127-422b-91ae-364da2661108; Patch, Vendor Advisory)

- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-087 (af854a3a-2127-422b-91ae-364da2661108)

- https://exchange.xforce.ibmcloud.com/vulnerabilities/5489 (af854a3a-2127-422b-91ae-364da2661108)

## Provenance

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2000-1149; retrieved 2026-11-12; source updated 2026-11-12

Revision: ed6f65bfadb676392d0bc4ed102ac3dd9422bd73a9ef84bd15ff750d5aadb1e6

Canonical: https://y2.dev/cve/CVE-2000-1149

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