CVE-2017-11786

8.8 HIGH
Published: October 13, 2017 Modified: May 13, 2026
View on NVD

Description

Skype for Business in Microsoft Lync 2013 SP1 and Skype for Business 2016 allows an attacker to steal an authentication hash that can be reused elsewhere, due to how Skype for Business handles authentication requests, aka "Skype for Business Elevation of Privilege Vulnerability."

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.securityfocus.com/bid/101156
Source: secure@microsoft.com
Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1039530
Source: secure@microsoft.com
Third Party Advisory VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11786
Source: secure@microsoft.com
Patch Vendor Advisory
http://www.securityfocus.com/bid/101156
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1039530
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11786
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Vendor Advisory

6 reference(s) from NVD

Quick Stats

CVSS v3 Score
8.8 / 10.0
EPSS (Exploit Probability)
9.4%
95th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-294

Affected Vendors

microsoft

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