Which products and versions are affected by CVE-2007-2815?

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

Is CVE-2007-2815 being exploited in the wild?

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

Is CVE-2007-2815 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-2007-2815?

Public exploit code is available.

Is there a fix for CVE-2007-2815?

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

How urgently should CVE-2007-2815 be patched?

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

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Vulnerability Intelligence

CVE-2007-2815

CriticalPublic exploit

The "hit-highlighting" functionality in webhits.dll in Microsoft Internet Information Services (IIS) Web Server 5.0 only uses Windows NT ACL configuration, which allows remote attackers to bypass NTLM and basic authentication mechanisms and access private web directories via the…

Published May 22, 2007 · Updated Apr 22, 2026

Key Facts

Patch immediately

CVE-2007-2815 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Internet Information Services (Microsoft).
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 73% 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

10.0

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

EPSS (30-day exploit likelihood)

73%

Higher than 99.4% 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-2007-2815 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Affected Products

1 affected entries in total

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

Timeline

Publicly disclosed
May 22, 2007
Last updated
Apr 22, 2026

Weakness Type

CWE-264

References

exploitExploitDB-4016
other41091
other2725
other328832
other20070522 [ISecAuditors Security Advisories] Microsoft IIS5 NTLM and Basic authentication bypass

1 more references in the full CVE brief

FAQ

Common Questions.

The "hit-highlighting" functionality in webhits.dll in Microsoft Internet Information Services (IIS) Web Server 5.0 only uses Windows NT ACL configuration, which allows remote attackers to bypass NTLM and basic authentication mechanisms and access private web directories via the CiWebhitsfile parameter to null.htw.
Affected: 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-2007-2815 Running On Your Attack Surface?

Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.