Which products and versions are affected by CVE-2000-0630?

Affected: Internet Information Server (Microsoft) versions 4.0; Internet Information Services (Microsoft) versions 5.0. The full list is in the CVE brief.

Is CVE-2000-0630 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2000-0630 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2000-0630?

Public exploit code is available.

Is there a fix for CVE-2000-0630?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2000-0630 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2000-0630

MediumPublic exploit

IIS 4.0 and 5.0 allows remote attackers to obtain fragments of source code by appending a +.htr to the URL, a variant of the "File Fragment Reading via .HTR" vulnerability.

Published Jul 17, 2000 · Updated Apr 15, 2026

Key Facts

Patch immediately

CVE-2000-0630 is a medium-severity vulnerability (CVSS 5.0 v2) affecting Internet Information Server (Microsoft), Internet Information Services (Microsoft).
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 68% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v2

5.0

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

EPSS (30-day exploit likelihood)

68%

Higher than 99.3% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2000-0630 brief as a PDF

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Description

IIS 4.0 and 5.0 allows remote attackers to obtain fragments of source code by appending a +.htr to the URL, a variant of the "File Fragment Reading via .HTR" vulnerability.

Affected Products

2 affected entries in total

Product	Affected versions	Fixed in
Internet Information ServerMicrosoft	4.0	n/a
Internet Information ServicesMicrosoft	5.0	n/a

Timeline

Publicly disclosed
Jul 17, 2000
Last updated
Apr 15, 2026

References

FAQ

Common Questions.

IIS 4.0 and 5.0 allows remote attackers to obtain fragments of source code by appending a +.htr to the URL, a variant of the "File Fragment Reading via .HTR" vulnerability.
Affected: Internet Information Server (Microsoft) versions 4.0; Internet Information Services (Microsoft) versions 5.0. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Is CVE-2000-0630 Running On Your Attack Surface?

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