CVE-2000-0304

Internet Information Server vulnerability

CVSS

5.0

EPSS

27.7%

EPSS pct

98th

Exploited

No known

Microsoft IIS 4.0 and 5.0 with the IISADMPWD virtual directory installed allows a remote attacker to cause a denial of service via a malformed request to the inetinfo.exe program, aka the "Undelimited .HTR Request" vulnerability.

Affected vendor

Microsoft

Affected product

Internet Information Server

CVSS vector

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

Published

2000-05-10

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 availability.

Its EPSS score of 27.7% 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-2000-0304

Confirm whether Microsoft Internet Information Server is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2000-0304.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2000-0304

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2000-0304 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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