How severe is CVE-2003-0227?

CVE-2003-0227 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2003-0227 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 39% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2003-0227?

CVE-2003-0227 primarily affects Microsoft Windows 2000. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2003-0227?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2003-0227 published?

CVE-2003-0227 was published on 2003-06-09 and last updated on 2026-06-16.

CVE-2003-0227

CVE-2003-0227 is a medium-severity vulnerability in Microsoft Windows 2000 with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 39% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 39% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Microsoft Windows 2000
Published: 2003-06-09
Last modified: 2026-06-16

Description

The logging capability for unicast and multicast transmissions in the ISAPI extension for Microsoft Windows Media Services in Microsoft Windows NT 4.0 and 2000, nsiislog.dll, allows remote attackers to cause a denial of service in Internet Information Server (IIS) and execute arbitrary code via a certain network request.

Frequently asked questions

What is CVE-2003-0227?: The logging capability for unicast and multicast transmissions in the ISAPI extension for Microsoft Windows Media Services in Microsoft Windows NT 4.0 and 2000, nsiislog.dll, allows remote attackers to cause a denial of service in Internet Information Server (IIS) and execute arbitrary code via a certain network request.
How severe is CVE-2003-0227?: CVE-2003-0227 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2003-0227 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 39% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-0227?: CVE-2003-0227 primarily affects Microsoft Windows 2000. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2003-0227?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2003-0227 published?: CVE-2003-0227 was published on 2003-06-09 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:o:microsoft:windows_2000:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_nt:4.0:*:*:*:*:*:*:*

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