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CVE

CVE-2023-28229

Microsoft Windows CNG Key Isolation Service Privilege Escalation Vulnerability

Windows CNG Key Isolation Service Elevation of Privilege Vulnerability.

HIGH · CVSS 7 ⚠ CISA KEV EPSS 0.08636
Act now
  • Listed on CISA KEV (known exploited in the wild)
  • SSVC exploitation status: active
  • EPSS percentile: top 7% of all CVEs by exploitation likelihood
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬢

Required Remediation

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

⬡

Weakness Classification

CWE-591Sensitive Data Storage in Improperly Locked Memory
▤

Affected Products & Versions

13
microsoft windows 10 1507< 10.0.10240.19869
microsoft windows 10 1607< 10.0.14393.5850
microsoft windows 10 1809< 10.0.17763.4252
microsoft windows 10 20h2< 10.0.19042.2846
microsoft windows 10 21h2< 10.0.19044.2846
microsoft windows 10 22h2< 10.0.19045.2846
microsoft windows 11 21h2< 10.0.22000.1817
microsoft windows 11 22h2< 10.0.22621.1555
▣

Scoring & Timeline

7
HIGH · CVSS v3.1 · secure@microsoft.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD11 Apr 2023 · 09:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
active
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

2
cisaKEV-CVE-2023-28229
msrcCVE-2023-28229Elevation of Privilege
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-28229US Government Resource
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