{"id":"CVE-2009-1535","aliases":[],"url":"https://o3.security/vulnerability/CVE-2009-1535","summary":"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,…","details":"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.","published":"2009-06-10T14:30:00.170","modified":"2026-06-16T23:07:28.580","cvss":null,"epss":{"score":0.98115,"percentile":0.99909,"asOf":"2026-09-05"},"cisaKev":null,"exploitsKnown":4,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"http://archives.neohapsis.com/archives/fulldisclosure/2009-05/0135.html"},{"type":"WEB","url":"http://archives.neohapsis.com/archives/fulldisclosure/2009-05/0139.html"},{"type":"WEB","url":"http://archives.neohapsis.com/archives/fulldisclosure/2009-05/0144.html"},{"type":"WEB","url":"http://archives.neohapsis.com/archives/fulldisclosure/2009-05/att-0135/IIS_Advisory.pdf"},{"type":"ADVISORY","url":"http://blog.zoller.lu/2009/05/iis-6-webdac-auth-bypass-and-data.html"},{"type":"ADVISORY","url":"http://isc.sans.org/diary.html?n&storyid=6397"},{"type":"WEB","url":"http://view.samurajdata.se/psview.php?id=023287d6&page=1"},{"type":"ADVISORY","url":"http://www.attrition.org/pipermail/vim/2009-June/002192.html"},{"type":"ADVISORY","url":"http://www.us-cert.gov/cas/techalerts/TA09-160A.html"},{"type":"FIX","url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-020"},{"type":"ADVISORY","url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6029"},{"type":"WEB","url":"http://archives.neohapsis.com/archives/fulldisclosure/2009-05/0135.html"},{"type":"WEB","url":"http://archives.neohapsis.com/archives/fulldisclosure/2009-05/0139.html"},{"type":"WEB","url":"http://archives.neohapsis.com/archives/fulldisclosure/2009-05/0144.html"},{"type":"WEB","url":"http://archives.neohapsis.com/archives/fulldisclosure/2009-05/att-0135/IIS_Advisory.pdf"},{"type":"ADVISORY","url":"http://blog.zoller.lu/2009/05/iis-6-webdac-auth-bypass-and-data.html"},{"type":"ADVISORY","url":"http://isc.sans.org/diary.html?n&storyid=6397"},{"type":"WEB","url":"http://view.samurajdata.se/psview.php?id=023287d6&page=1"},{"type":"ADVISORY","url":"http://www.attrition.org/pipermail/vim/2009-June/002192.html"},{"type":"ADVISORY","url":"http://www.us-cert.gov/cas/techalerts/TA09-160A.html"},{"type":"FIX","url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-020"},{"type":"ADVISORY","url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6029"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-06-16T23:07:28.580"}}