HIGHCVSS v3.1 7.8Actively exploited · CISA KEV since 2021-11-03Vulnerability

CVE-2020-17087

Microsoft Windows kernel contains an unspecified vulnerability that allows for privilege escalation.

Properties

Euvd product
Windows Server 2008 Service Pack 2, Windows 10 Version 1507, Windows Server 2008 R2 Service Pack 1 (Server Core installation), Windows 10 Version 1903 for 32-bit Systems, Windows 10 Version 1903 for x64-based Systems, Windows 10 Version 1909, Windows Server 2012 (Server Core installation), Windows Server, version 1909 (Server Core installation), Windows Server 2008 Service Pack 2 (Server Core installation), Windows Server version 2004, Windows Server version 20H2, Windows 10 Version 1803, Windows 10 Version 2004, Windows 7, Windows 10 Version 1903 for ARM64-based Systems, Windows 10 Version 1607, Windows Server 2008 R2 Service Pack 1, Windows 10 Version 1809, Windows Server 2012 R2 (Server Core installation), Windows Server 2016, Windows Server 2012, Windows Server 2019, Windows 10 Version 20H2, Windows 7 Service Pack 1, Windows 8.1
Vulnerability name
Microsoft Windows Kernel Privilege Escalation Vulnerability
First seen
2025-10-21T23:35:32+00:00
Cvss score
7.8
Epss score
0.05431
Last seen
2026-10-19T12:00:27+00:00
Due date
2022-05-03
Euvd assigner
microsoft
Retrieved at
2026-10-21T01:24:47+00:00
Exploited euvd since
2021-11-03T00:00:00+00:00
Src batch id
epss_history-20261020T103617Z-728ddd
Source url
https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
Date added
2021-11-03
Score
7.8
Euvd base score version
3.1
Fetched at
2026-10-20T10:36:20+00:00
Euvd vendor
Microsoft
Cvss vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
In Signal since
initial import (Sep 2026)
Euvd base score
7.8

Related Entities (37 · showing 23)

AFFECTS_PRODUCT (34 · showing 20)

→[Product]cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:x86:*
→[Product]cpe:2.3:o:microsoft:windows_10_1507:-:*:*:*:*:*:x64:*
→[Product]cpe:2.3:o:microsoft:windows_10_1909:-:*:*:*:*:*:x86:*
→[Product]cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_10_1803:-:*:*:*:*:*:x64:*
→[Product]cpe:2.3:o:microsoft:windows_10_1507:-:*:*:*:*:*:x86:*
→[Product]cpe:2.3:o:microsoft:windows_server_2008:r2:sp2:*:*:*:*:x64:*
→[Product]cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_10_1903:-:*:*:*:*:*:arm64:*
→[Product]cpe:2.3:o:microsoft:windows_10_2004:-:*:*:*:*:*:x64:*
→[Product]cpe:2.3:o:microsoft:windows_10_1903:-:*:*:*:*:*:x86:*
→[Product]cpe:2.3:o:microsoft:windows_10_1903:-:*:*:*:*:*:x64:*
→[Product]cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:x64:*
→[Product]cpe:2.3:o:microsoft:windows_10_1803:-:*:*:*:*:*:x86:*
→[Product]cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:arm64:*
→[Product]cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*

DESCRIBES (1)

←[KEVEntry]Microsoft Windows Kernel Privilege Escalation Vulnerability

HAS_WEAKNESS (1)

→[Weakness]Incorrect Calculation of Buffer Size

INVOLVES (1)

←[Signal]kev_added · 2021-11-03

Explore deeper with Ninja Signal's threat intelligence graph

Search in SpektrOpen Signal Desktop
CVE-2020-17087 (CVSS v3.1 7.8) — Ninja Signal Threat Intelligence | Ninja Signal