How severe is CVE-2023-28229?

CVE-2023-28229 has a CVSS 3.x base score of 7.0, rated high severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-28229 being actively exploited?

Yes. CVE-2023-28229 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2023-10-04, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2023-28229?

CVE-2023-28229 primarily affects Microsoft Windows 10 1507. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-28229?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2023-28229 have an EU (EUVD) identifier?

Yes. CVE-2023-28229 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-31937. It is also flagged as exploited in the EUVD (since 2023-10-04).

When was CVE-2023-28229 published?

CVE-2023-28229 was published on 2023-04-11 and last updated on 2026-06-17.

CVE-2023-28229

CVE-2023-28229 is a high-severity vulnerability in Microsoft Windows 10 1507 with a CVSS 3.x base score of 7.0. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2023-10-04). The underlying weakness is classified as CWE-591.

Key facts

Severity: High (CVSS 3.x base score 7.0)
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2023-10-04)
EU (EUVD) id: EUVD-2023-31937
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2023-10-04)
Weakness: CWE-591
Affected product: Microsoft Windows 10 1507
Published: 2023-04-11
Last modified: 2026-06-17

Description

Windows CNG Key Isolation Service Elevation of Privilege Vulnerability

Frequently asked questions

What is CVE-2023-28229?: Windows CNG Key Isolation Service Elevation of Privilege Vulnerability
How severe is CVE-2023-28229?: CVE-2023-28229 has a CVSS 3.x base score of 7.0, rated high severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-28229 being actively exploited?: Yes. CVE-2023-28229 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2023-10-04, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2023-28229?: CVE-2023-28229 primarily affects Microsoft Windows 10 1507. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-28229?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2023-28229 have an EU (EUVD) identifier?: Yes. CVE-2023-28229 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-31937. It is also flagged as exploited in the EUVD (since 2023-10-04).
When was CVE-2023-28229 published?: CVE-2023-28229 was published on 2023-04-11 and last updated on 2026-06-17.

References

Affected products (15)

cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:*

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Other CWE-591 vulnerabilities

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