CVE-2020-17087highunder attackCWE-131

CVE-2020-17087: high-severity vulnerability in Microsoft Windows 10 Version 1507

Windows Kernel Local Elevation of Privilege Vulnerability

Published · Updated

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76Vexday Risk Score

Prioritize patching. It under exploitation confirmed by CISA and has a public proof of concept.

ssvc Actcvss 7.8epss 5.4%
from disclosure to weapon15 days
Published on NVDNov 11
1st PoC+15d
CISA KEV+357d
Action required by CISAfederal deadline: 2022-05-03

Apply updates per vendor instructions.

In short

A flaw in the Windows Kernel allows an attacker with local access to gain higher privileges (escalate from a regular user to administrator). This is dangerous because it lets someone already on your computer take full control of the system.

Technical detail

A local privilege escalation vulnerability in the Windows Kernel (CWE-131: Incorrect Buffer Size Calculation) allows an authenticated local user to execute arbitrary code with kernel-level privileges. Exploitation requires prior local code execution capability and results in complete system compromise.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

Windows Kernel Local Elevation of Privilege Vulnerability
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
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