CVE-2000-1217 — Microsoft Windows 2000 before Service Pack 2 (SP2), when running in a non-Windows 2000 domain and using NTLM authentication, and when credentials of an account are locally cached, allows local users to bypass account lockout policies and make an unlimited number of login attempts, aka the "Domain Account Lockout" vulnerability

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MEDIUM

Microsoft Windows 2000 before Service Pack 2 (SP2), when running in a non-Windows 2000 domain and using NTLM authentication, and when credentials of an account are locally cached, allows local users to bypass account lockout policies and make an unlimited number of login attempts, aka the "Domain Account Lockout" vulnerability

Published Apr 21, 2005

4.6

MEDIUM

CVSS 2.0

EPSS 1.75%

Description

Microsoft Windows 2000 before Service Pack 2 (SP2), when running in a non-Windows 2000 domain and using NTLM authentication, and when credentials of an account are locally cached, allows local users to bypass account lockout policies and make an unlimited number of login attempts, aka the "Domain Account Lockout" vulnerability.

Affected products

Remediation

No remediation recorded yet.

Metrics

1.75% 0.01749

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.01749

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 (14 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	1.75% (0.01749)	77.01th	v5 (v2026.06.15)
Jun 15, 2026	1.75% (0.01749)	74.83th	v5 (v2026.06.15)
Mar 17, 2025	1.19% (0.01186)	77.34th	v4 (v2025.03.14)
Dec 17, 2024	18.38% (0.18375)	96.20th	v3 (v2023.03.01)
Dec 12, 2024	0.21% (0.00211)	59.98th	v3 (v2023.03.01)
Mar 28, 2024	0.23% (0.00227)	60.22th	v3 (v2023.03.01)
Feb 28, 2024	0.26% (0.00262)	65.06th	v3 (v2023.03.01)
Aug 11, 2023	0.26% (0.00262)	63.06th	v3 (v2023.03.01)
Mar 12, 2023	0.21% (0.00215)	57.69th	v3 (v2023.03.01)
Mar 7, 2023	0.07% (0.00075)	30.19th	v3 (v2023.03.01)
Mar 6, 2023	5.15% (0.05148)	89.65th	v2 (v2022.01.01)
Jul 18, 2022	5.15% (0.05148)	89.01th	v2 (v2022.01.01)
Apr 1, 2022	4.73% (0.04734)	88.15th	v2 (v2022.01.01)
Feb 4, 2022	4.73% (0.04734)	74.53th	v2 (v2022.01.01)

Weaknesses (0)

No CWE recorded.

References (4)

http://www.kb.cert.org/vuls/id/818496
third-party-advisoryx_refsource_CERT-VNUS Government Resource
http://www.securityfocus.com/bid/1973
vdb-entryx_refsource_BID
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-089
vendor-advisoryx_refsource_MS
https://exchange.xforce.ibmcloud.com/vulnerabilities/5585
vdb-entryx_refsource_XF

Link	Providers	Tags
http://www.kb.cert.org/vuls/id/818496		third-party-advisoryx_refsource_CERT-VNUS Government Resource
http://www.securityfocus.com/bid/1973		vdb-entryx_refsource_BID
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-089		vendor-advisoryx_refsource_MS
https://exchange.xforce.ibmcloud.com/vulnerabilities/5585		vdb-entryx_refsource_XF

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Apr 21, 2005

Updated Aug 8, 2024

Reserved Apr 21, 2005

Link CVE-2000-1217

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2000-1217

Red Hat

Severity n/a

Public date n/a

Links CVE-2000-1217