How severe is CVE-2003-1566?

CVE-2003-1566 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2003-1566 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 28% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2003-1566?

CVE-2003-1566 affects Microsoft Internet Information Services. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2003-1566?

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

When was CVE-2003-1566 published?

CVE-2003-1566 was published on 2009-01-15 and last updated on 2026-06-16.

CVE-2003-1566

CVE-2003-1566 is a medium-severity vulnerability in Microsoft Internet Information Services with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 28% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-16.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 28% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-16
Affected product: Microsoft Internet Information Services
Published: 2009-01-15
Last modified: 2026-06-16

Description

Microsoft Internet Information Services (IIS) 5.0 does not log requests that use the TRACK method, which allows remote attackers to obtain sensitive information without detection.

Frequently asked questions

What is CVE-2003-1566?: Microsoft Internet Information Services (IIS) 5.0 does not log requests that use the TRACK method, which allows remote attackers to obtain sensitive information without detection.
How severe is CVE-2003-1566?: CVE-2003-1566 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2003-1566 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 28% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-1566?: CVE-2003-1566 affects Microsoft Internet Information Services. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2003-1566?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2003-1566 published?: CVE-2003-1566 was published on 2009-01-15 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:microsoft:internet_information_services:5.0:*:*:*:*:*:*:*

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