Privilege escalation in Cortana in Microsoft Windows

Published: 2018-06-12 20:48:33 | Updated: 2018-11-25
Severity Low
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2018-8140
CVSSv3 6.8 [CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CWE ID CWE-20
Exploitation vector Local
Public exploit N/A
Vulnerable software Windows
Windows Server
Vulnerable software versions Windows 10
Windows Server 2016
Vendor URL Microsoft

Security Advisory

1) Improper input validation

Description

The vulnerability allows a local user to escalate privileges.

The vulnerability exists due to an input validation error when processing data within Cortana without consideration for status. A local user can execute arbitrary code on the vulnerable system with elevated privileges.


Remediation

Install updates from vendor's website.

External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8140

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