CVE-2017-7269

Microsoft Windows Server Buffer Overflow Vulnerability

IN CISA KEV

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.

Vendor: Microsoft
Product: Internet Information Services (IIS)
CVSS 3.1: 9.8 (critical), scored by NVD (primary)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1: 9.8 (critical), scored by 134c704f-9b21-4f2e-91b3-4a467353bcc0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-120
Published: 2017-03-27
NVD modified: 2026-06-17
NVD status: Analyzed

CISA KEV

Date added: 2021-11-03
Due date: 2022-05-03
Ransomware use: Unknown
Required action: Apply updates per vendor instructions.

EPSS

100% chance of exploitation in the next 30 days (percentile 99th)

FIRST EPSS, updated 17 Oct 2026. About EPSS

CVSS is severity, EPSS is likelihood, KEV means already exploited. EPSS is a statistical probability, not a certainty: a low score does not make a bug safe, and a high one does not prove it is being exploited.

References

www.securityfocus.com (Broken Link, Third Party Advisory, VDB Entry)
www.securitytracker.com (Broken Link, Third Party Advisory, VDB Entry)
github.com (Broken Link, Third Party Advisory)
github.com (Issue Tracking, Patch)
support.microsoft.com (Broken Link, Patch, Vendor Advisory)
www.securityfocus.com (Broken Link, Third Party Advisory, VDB Entry)
www.securitytracker.com (Broken Link, Third Party Advisory, VDB Entry)
github.com (Broken Link, Third Party Advisory)
github.com (Issue Tracking, Patch)
support.microsoft.com (Broken Link, Patch, Vendor Advisory)
www.cisa.gov (US Government Resource)

Data last updated 18 Oct 2026. Sources: NVD API 2.0, CISA KEV catalog, FIRST EPSS. Links: NVD, CISA KEV. Metadata only. ThreatWire does not host exploit code.