CVE-2001-0663

Exp

Terminal Server in Windows NT and Windows 2000 allows remote attackers to cause a denial of service via a sequence of invalid Remote Desktop Protocol (RDP) packets.

Published: 2001-12-06 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2001-0663 is rated High Exploit Risk (74.3/100): CVSS Medium severity, with high exploitation likelihood (EPSS 55.00%, 98th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +31.95% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2001-0663

EDB-ID Source Kind Published Link
21123 exploit_db edb 2001-10-18 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2001-0663

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-12-28 23.05% 55.00% +31.95%
2 2025-12-27 55.00% 23.05% -31.95%
3 2025-10-28 — 55.00% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2001-0663

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2001-0663

Affected software / configurations for CVE-2001-0663

Vendor Product Version Raw CPE
microsoft windows_2000 — cpe:2.3:o:microsoft:windows_2000:*:*:*:*:*:*:*:*
microsoft windows_nt 4.0 cpe:2.3:o:microsoft:windows_nt:4.0:*:*:*:*:*:*:*

References for CVE-2001-0663

cvelogic Threat Intelligence