CVE-2003-0661

Windows 2000 vulnerability

CVSS

5.0

EPSS

25.2%

EPSS pct

98th

Exploited

No known

The NetBT Name Service (NBNS) for NetBIOS in Windows NT 4.0, 2000, XP, and Server 2003 may include random memory in a response to a NBNS query, which could allow remote attackers to obtain sensitive information.

Affected vendor

Microsoft

Affected product

Windows 2000

CVSS vector

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

Published

2003-10-20

Risk analysis

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

Its EPSS score of 25.2% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2003-0661

Confirm whether Microsoft Windows 2000 is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2003-0661.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2003-0661

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2003-0661 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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