Microsoft · Security update · April 12, 2022

KB5012592: April 2022 cumulative update for Windows 11 21H2

KB5012592, released April 12, 2022, fixes 68 CVEs across 2 products. 2 of them are being exploited (CVE-2022-26904); 2 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.

Patch now2 on CISA KEVKnown ransomware use1 publicly disclosedUnsupported product
CVEs closed
68
9 rated Critical
Exploited
2
CVE-2022-26904
Exploitation more likely
9
Vendor assessment
Highest EPSS
0.9086
99th percentile

Priority of the 68 CVEs

Patch now 2 Urgent 15 High 46 Routine 5

Applies to

ProductBuild after install
Windows 11 version 21H2 for ARM64-based Systems22000.613
Windows 11 version 21H2 for x64-based Systems22000.613

CVEs this fix closes

PriorityCVEComponentImpactCVSSEPSSExploitation
Patch now CVE-2022-26904 Windows User Profile Service Elevation of Privilege 7.0 0.1695 KEVDisclosedExploited
Patch now CVE-2022-24521 Windows Common Log File System Driver Elevation of Privilege 7.8 0.0713 KEVRansomwareExploited
Urgent CVE-2022-26809 Windows Remote Procedure Call Runtime Remote Code Execution 9.8 0.9086 More likely
Urgent CVE-2022-24500 Windows SMB Remote Code Execution 8.8 0.3805 Exploitation Less Likely
Urgent CVE-2022-24497 Windows Network File System Remote Code Execution 9.8 0.3479 More likely
Urgent CVE-2022-24491 Windows Network File System Remote Code Execution 9.8 0.3347 More likely
Urgent CVE-2022-24481 Windows Common Log File System Driver Elevation of Privilege 7.8 0.1678 More likely
Urgent CVE-2022-24542 Windows Win32K Elevation of Privilege 7.8 0.0915 More likely
Urgent CVE-2022-24474 Windows Win32K Elevation of Privilege 7.8 0.0651 More likely
Urgent CVE-2022-24547 Windows Media Elevation of Privilege 7.8 0.0603 More likely
Urgent CVE-2022-24541 Windows SMB Remote Code Execution 8.8 0.0305 Exploitation Less Likely
Urgent CVE-2022-26919 Windows LDAP - Lightweight Directory Access Protocol Remote Code Execution 8.1 0.0257 Exploitation Less Likely
Urgent CVE-2022-24546 Windows DWM Core Library Elevation of Privilege 7.8 0.0082 More likely
Urgent CVE-2022-26914 Windows Win32K Elevation of Privilege 7.8 0.0082 More likely
Urgent CVE-2022-23257 Role: Windows Hyper-V Remote Code Execution 8.8 0.0063 Exploitation Less Likely
Urgent CVE-2022-22008 Role: Windows Hyper-V Remote Code Execution 7.8 0.0042 Exploitation Less Likely
Urgent CVE-2022-24537 Role: Windows Hyper-V Remote Code Execution 7.8 0.0037 Exploitation Less Likely
High CVE-2022-24533 Windows RDP Remote Code Execution 8.0 0.0560 Exploitation Less Likely
High CVE-2022-26826 Role: DNS Server Remote Code Execution 7.2 0.0405 Exploitation Less Likely
High CVE-2022-26915 Windows SChannel Denial of Service 7.5 0.0356 Exploitation Less Likely
High CVE-2022-26831 Windows LDAP - Lightweight Directory Access Protocol Denial of Service 7.5 0.0327 Exploitation Less Likely
High CVE-2022-24492 Windows Remote Procedure Call Runtime Remote Code Execution 8.8 0.0309 Exploitation Less Likely
High CVE-2022-24528 Windows Remote Procedure Call Runtime Remote Code Execution 8.8 0.0258 Exploitation Less Likely
High CVE-2022-24487 Windows Local Security Authority Subsystem Service (LSASS) Remote Code Execution 8.8 0.0222 Exploitation Less Likely
High CVE-2022-24545 Windows Kerberos Remote Code Execution 8.1 0.0221 Exploitation Less Likely
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