CVE-2017-7269: Microsoft Windows Server Buffer Overflow Vulnerability

Critical severity, CVSS 9.8. Actively exploited: in CISA KEV since 2021-11-03. EPSS: 99.8% chance of exploitation in the next 30 days.

Buffer overflow in the ScStoragePathFromUrl function in the WebDAV service in Internet Information Services (IIS) 6.0 in Microsoft Windows Server 2003 R2 allows remote attackers to execute arbitrary code via a long header beginning with "If: <http://" in a PROPFIND request, as exploited in the wild in July or August 2016.

Affected products

• Microsoft Internet Information Services: version 6.0 only

Published 2017-03-27. Last modified 2026-06-17.