$ cve CVE-2009-1535 JSON

CVE-2009-1535 EXPLOIT

7.5

HIGH · CVSS 2.0 · EPSS 98.1% (pctl 100)

Patch early

A public exploit exists.

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.

Scoring

CVSS	7.5 (HIGH, v2.0)
Vector	AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS	98.12% — more likely to be exploited than 100% of all CVEs
Weakness	CWE-287
On CISA KEV	no
Public exploit	yes
Published	2009-06-10
Last modified	2026-06-16

Affected (3)

Vendor	Product
microsoft	internet information services
microsoft	windows server 2003
microsoft	windows xp

Public exploits

Source	Title	Date
exploit-db	Microsoft IIS 6.0 - WebDAV Remote Authentication Bypass (2)	2009-05-26
exploit-db	Microsoft IIS 6.0 - WebDAV Remote Authentication Bypass (1)	2009-05-15

References

→ the Explorer · watch your stack · NVD