HIGHCVSS v3.1 7.0Actively exploited · CISA KEV since 2023-10-04Vulnerability

CVE-2023-28229

Microsoft Windows Cryptographic Next Generation (CNG) Key Isolation Service contains an unspecified vulnerability that allows an attacker to gain specific limited SYSTEM privileges.

Properties

Euvd product
Windows Server 2016 (Server Core installation), Windows 10 Version 22H2, Windows 10 Version 1809, Windows 11 version 22H2, Windows Server 2008 Service Pack 2, Windows 11 version 21H2, Windows Server 2016, Windows 10 Version 21H2, Windows Server 2012 R2, Windows Server 2008 Service Pack 2 (Server Core installation), Windows Server 2022, Windows Server 2008 R2 Service Pack 1, Windows Server 2012 R2 (Server Core installation), Windows Server 2012 (Server Core installation), Windows 10 Version 1607, Windows 10 Version 1507, Windows 10 Version 20H2, Windows Server 2019, Windows Server 2012, Windows Server 2008 R2 Service Pack 1 (Server Core installation), Windows Server 2019 (Server Core installation)
Vulnerability name
Microsoft Windows CNG Key Isolation Service Privilege Escalation Vulnerability
First seen
2025-10-21T23:05:49+00:00
Cvss score
7
Epss score
0.01671
Last seen
2026-10-19T12:00:27+00:00
Due date
2023-10-25
Euvd assigner
microsoft
Retrieved at
2026-10-21T01:24:47+00:00
Exploited euvd since
2023-10-04T00:00:00+00:00
Src batch id
epss_history-20261020T103617Z-728ddd
Source url
https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
Date added
2023-10-04
Score
7
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:H/PR:L/UI:N/S:U/C:H/I:H/A:H
In Signal since
initial import (Sep 2026)
Euvd base score
7

Related Entities (18)

AFFECTS_PRODUCT (15)

→[Product]cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
→[Product]cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*

DESCRIBES (1)

←[KEVEntry]Microsoft Windows CNG Key Isolation Service Privilege Escalation Vulnerability

HAS_WEAKNESS (1)

→[Weakness]CWE-591

INVOLVES (1)

←[Signal]kev_added · 2023-10-04

Explore deeper with Ninja Signal's threat intelligence graph

Search in SpektrOpen Signal Desktop
CVE-2023-28229 (CVSS v3.1 7) — Ninja Signal Threat Intelligence | Ninja Signal