CVE-2023-28229
KEVMicrosoft Windows CNG Key Isolation Service Privilege Escalation Vulnerability
Description
Microsoft Windows Cryptographic Next Generation (CNG) Key Isolation Service contains an unspecified vulnerability that allows an attacker to gain specific limited SYSTEM privileges.
Windows CNG Key Isolation Service Elevation of Privilege Vulnerability
CVSS 3.1 vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HPublishedApr 11, 2023
Last modifiedJun 17, 2026
Added to KEVOct 4, 2023
Remediation dueOct 25, 2023
References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2023-28229PatchVendor Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-28229US Government Resource
0 recent articles mention this CVE
65
Risk assessment · High
Actively exploited. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 1097 days
- CVSS
- 7.0 HIGH
- EPSS (30-day exploit probability)
- 1.7% · top 23% of all CVEs
- Weakness
- CWE-591
Recommended actions
- 1.Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.