CVE-2004-0540

Windows 2000 vulnerability

CVSS

10.0

EPSS

4.8%

EPSS pct

91th

Exploited

No known

Microsoft Windows 2000, when running in a domain whose Fully Qualified Domain Name (FQDN) is exactly 8 characters long, does not prevent users with expired passwords from logging on to the domain.

Affected vendor

Microsoft

Affected product

Windows 2000

CVSS vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Published

2004-08-06

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to complete impact to confidentiality, complete impact to integrity, complete impact to availability.

Its EPSS score of 4.8% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2004-0540

Confirm whether Microsoft Windows 2000 is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2004-0540.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2004-0540

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2004-0540 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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