What is CVE-2017-11782?

CVE-2017-11782 is a high-severity vulnerability in Microsoft Windows 10, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2017-10-13.

How severe is CVE-2017-11782?

High severity. CVSS v3 base score is 7.8 out of 10.

Improper input validation in Microsoft Windows 10

CVE-2017-11782

The Microsoft Server Block Message (SMB) on Microsoft Windows 10 1607 and Windows Server 2016, allows an elevation of privilege vulnerability when an attacker sends specially crafted requests to the server, aka "Windows SMB Elevation of Privilege Vulnerability".

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2017-10-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.012 (66.4th percentile), scored 2026-10-07.

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Microsoft Windows 10 — versions 1607
Microsoft Windows Server 2016
Microsoft Corporation Server Block Message (SMB) — versions Microsoft Windows 10 1607 and Windows Server 2016

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

www.securitytracker.com/id/1039528 (VDB Entry, Third Party Advisory, vdb-entry)
www.securityfocus.com/bid/101143 (VDB Entry, Third Party Advisory, vdb-entry)
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11782 (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2017-11782?: CVE-2017-11782 is a high-severity vulnerability in Microsoft Windows 10, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2017-10-13.
How severe is CVE-2017-11782?: High severity. CVSS v3 base score is 7.8 out of 10.