Findings

CVE-2023-28229

Microsoft Windows CNG Key Isolation Service Privilege Escalation Vulnerability

Published Apr 11, 2023 · updated Jun 16, 2026 · microsoft windows 10 1507

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

Timeline

Detection, updates, and resolution for this record.

  1. Apr 11, 2023 · Catalog

    Detected

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

  2. Oct 4, 2023 · CISA KEV

    Known exploited

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

  3. Oct 25, 2023 · CISA KEV

    Remediation due

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

  4. Jun 16, 2026 · Catalog

    Updated

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

Required action

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

CISA due date Oct 25, 2023

Affected

  • cpe microsoft/windows 10 1507version unspecified
  • cpe microsoft/windows 10 1607version unspecified
  • cpe microsoft/windows 10 1809version unspecified
  • cpe microsoft/windows 10 20h2version unspecified
  • cpe microsoft/windows 10 21h2version unspecified
  • cpe microsoft/windows 10 22h2version unspecified
  • cpe microsoft/windows 11 21h2version unspecified
  • cpe microsoft/windows 11 22h2version unspecified
  • vendor Microsoft Windows CNG Key Isolation Serviceversion unspecified

Sources

  • CISA KEVCVE-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.

    cisa.gov
  • CVE.orgCVE-2023-28229

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2023-28229

    30-day exploitation probability 1.7%

    first.org
  • NIST NVDCVE-2023-28229

    Windows CNG Key Isolation Service Elevation of Privilege Vulnerability

    nvd.nist.gov

References

CVE-2023-28229 · ZeroDay Findings