Microsoft Windows CNG Key Isolation Service Privilege Escalation Vulnerability

Technical Severity

CVSS v3.1 Metrics

HIGH

7 / 10

Minimal Risk Critical

Vector Specification

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Exploitation Likelihood

EPSS Prediction

7.16 %

Predictive Probability

Percentile Rank

91.4 th

Documented as more likely to be exploited than 91.4% of known CVEs.

Detection Date

Oct 04, 2023

Remediation Due

Oct 25, 2023

CISA Catalog Active

Threat Analysis

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

Remediation Directive

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Asset Context

Vendor Identity

Microsoft

Affected Product

Windows CNG Key Isolation Service

Ransomware Status

Campaign Use Unknown

Weakness Classification

CWE-591

External Intelligence

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-28229

NVD

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2023-28229