How severe is CVE-2000-0631?

CVE-2000-0631 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2000-0631 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 25% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2000-0631?

CVE-2000-0631 primarily affects Microsoft Internet Information Server. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2000-0631?

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

When was CVE-2000-0631 published?

CVE-2000-0631 was published on 2000-07-14 and last updated on 2026-06-16.

CVE-2000-0631

CVE-2000-0631 is a medium-severity vulnerability in Microsoft Internet Information Server with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 25% places it in the 98th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 25% (98th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Internet Information Server
Published: 2000-07-14
Last modified: 2026-06-16

Description

An administrative script from IIS 3.0, later included in IIS 4.0 and 5.0, allows remote attackers to cause a denial of service by accessing the script without a particular argument, aka the "Absent Directory Browser Argument" vulnerability.

Frequently asked questions

What is CVE-2000-0631?: An administrative script from IIS 3.0, later included in IIS 4.0 and 5.0, allows remote attackers to cause a denial of service by accessing the script without a particular argument, aka the "Absent Directory Browser Argument" vulnerability.
How severe is CVE-2000-0631?: CVE-2000-0631 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2000-0631 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 25% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2000-0631?: CVE-2000-0631 primarily affects Microsoft Internet Information Server. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2000-0631?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2000-0631 published?: CVE-2000-0631 was published on 2000-07-14 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:microsoft:internet_information_server:3.0:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_information_server:4.0:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_information_services:5.0:*:*:*:*:*:*:*

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