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CVE-2009-1535

Published: Jun 10, 2009Updated: Apr 23, 2026 Sources: CVE List NVDCWE-287
NVD MITRE
7.5CVSSHIGH
EPSS Score
98.1%
Top 0.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

The WebDAV extension in Microsoft Internet Information Services (IIS) 5.1 and 6.0 allows remote attackers to bypass URI-based protection mechanisms, and list folders or read, create, or modify files, via a %c0%af (Unicode / character) at an arbitrary position in the URI, as demonstrated by inserting %c0%af into a "/protected/" initial pathname component to bypass the password protection on the protected\ folder, aka "IIS 5.1 and 6.0 WebDAV Authentication Bypass Vulnerability," a different vulnerability than CVE-2009-1122.

CVSS Vector Breakdown

AV:NAC:LAu:NC:PI:PA:P
Exploitability
AV:NAccess Vector
Network
AC:LAccess Complexity
Low
Au:NAuthentication
None
Impact
C:PConfidentiality
Partial
I:PIntegrity
Partial
A:PAvailability
Partial
Open in CVSS calculator →

Weaknesses

CWE-287

Affected Products

n/an/a
internet information servicesmicrosoft
On-premWeb App
Web & CMS Plugins / cms-core
microsoftcommercialUSOperating Systems

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6029
oval.cisecurity.org
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-020
docs.microsoft.com
http://view.samurajdata.se/psview.php?id=023287d6&page=1
view.samurajdata.se
and 8 more references View all →

Timeline

Published
Jun 10, 2009
Last Updated
Apr 23, 2026

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