ACTIVELY EXPLOITED
CVE-2023-28229: Microsoft Windows CNG Key Isolation Service Privilege Escalation Vulnerability
| Vendor | Microsoft |
|---|---|
| Product | Windows CNG Key Isolation Service |
| Actively exploited | Yes |
| Added to CISA KEV | 4 Oct 2023 |
| CISA federal deadline | 25 Oct 2023 |
| Weakness (CWE) | CWE-591 |
Required action (CISA's text)
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Description (NVD)
Microsoft Windows Cryptographic Next Generation (CNG) Key Isolation Service contains an unspecified vulnerability that allows an attacker to gain specific limited SYSTEM privileges.
SOURCES
Other Microsoft flaws
- patchtuesday:2026-11: Vulnerability in Microsoft
- CVE-2026-124194: Microsoft Office Outlook Missing User Interaction for Potentially Unsafe Action Vulnerability
- CVE-2026-96951: Microsoft Windows Command Injection Vulnerability
- CVE-2026-65660: Microsoft SharePoint Code Injection Vulnerability
- CVE-2026-85880: Microsoft Windows Heap-Based Buffer Overflow Vulnerability
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.