CVE WatchAug 10, 2026

CVE-2022-41125

Microsoft Windows CNG Key Isolation Service Privilege Escalation Vulnerability

CVSS

7.8

High

EPSS

3.0%

p87

KEV

YES

Nov 8, 2022

Exploit Today

0-100

Published: Nov 9, 2022 · Last modified: Aug 10, 2026 · CWE-787

EPSS · 30d

3.0%EPSS · 30 days3.0%

2026-08-022026-08-31

KEV catalog record

Product

Microsoft / Windows

Vulnerability

Microsoft Windows CNG Key Isolation Service Privilege Escalation Vulnerability

Added to KEV

Nov 8, 2022

Remediate by

Dec 9, 2022

Known ransomware use

Summary description

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

Required action

Apply updates per vendor instructions.

Notes

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-41125; https://nvd.nist.gov/vuln/detail/CVE-2022-41125

Technical description

Windows CNG Key Isolation Service Elevation of Privilege Vulnerability

Official references

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