# KB5035845: March 2024 cumulative update for Windows 10 21H2 KB5035845, released March 12, 2024, fixes 35 CVEs across 6 products. One of them is being exploited (CVE-2024-26169); 1 on CISA KEV. Patch Radar priority: Patch now. - Web page: https://patchblox.com/security/fix/microsoft/kb5035845 - Platform: Microsoft - Released: Mar 12, 2024 - Priority: Patch now (Closes CVE-2024-26169, exploited (CISA KEV, ransomware)) - CVEs: 35, exploited: 1, on CISA KEV: 1 - Vendor advisory: https://support.microsoft.com/help/5035845 ## Applies to | Product | Release | Fixed in | |---|---|---| | [Windows 10 Version 21H2 for 32-bit Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-21h2-for-32-bit-systems.md) | | | | [Windows 10 Version 21H2 for ARM64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-21h2-for-arm64-based-systems.md) | | | | [Windows 10 Version 21H2 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-21h2-for-x64-based-systems.md) | | | | [Windows 10 Version 22H2 for 32-bit Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-22h2-for-32-bit-systems.md) | | | | [Windows 10 Version 22H2 for ARM64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-22h2-for-arm64-based-systems.md) | | | | [Windows 10 Version 22H2 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-22h2-for-x64-based-systems.md) | | | ## CVEs this fix closes | CVE | Priority | Component | CVSS | EPSS | Exploitation | |---|---|---|---:|---:|---| | [CVE-2024-26169](https://patchblox.com/security/data/cve/CVE-2024-26169.md) | Patch now | Windows Error Reporting | 7.8 | 0.0401 | CISA KEV, Ransomware | | [CVE-2024-21407](https://patchblox.com/security/data/cve/CVE-2024-21407.md) | Urgent | Role: Windows Hyper-V | 8.1 | 0.1626 | | | [CVE-2024-21437](https://patchblox.com/security/data/cve/CVE-2024-21437.md) | Urgent | Microsoft Graphics Component | 7.8 | 0.0803 | More likely | | [CVE-2024-26170](https://patchblox.com/security/data/cve/CVE-2024-26170.md) | Urgent | Windows Composite Image File System | 7.8 | 0.0665 | More likely | | [CVE-2024-26182](https://patchblox.com/security/data/cve/CVE-2024-26182.md) | Urgent | Windows Kernel | 7.8 | 0.0557 | More likely | | [CVE-2024-21433](https://patchblox.com/security/data/cve/CVE-2024-21433.md) | Urgent | Windows Print Spooler Components | 7.0 | 0.0514 | More likely | | [CVE-2024-21408](https://patchblox.com/security/data/cve/CVE-2024-21408.md) | Urgent | Role: Windows Hyper-V | 5.5 | 0.0451 | | | [CVE-2024-21438](https://patchblox.com/security/data/cve/CVE-2024-21438.md) | High | Windows AllJoyn API | 7.5 | 0.0272 | | | [CVE-2024-21440](https://patchblox.com/security/data/cve/CVE-2024-21440.md) | High | Windows ODBC Driver | 8.8 | 0.0203 | | | [CVE-2024-21450](https://patchblox.com/security/data/cve/CVE-2024-21450.md) | High | Microsoft WDAC OLE DB provider for SQL | 8.8 | 0.0203 | | | [CVE-2024-26166](https://patchblox.com/security/data/cve/CVE-2024-26166.md) | High | Microsoft WDAC OLE DB provider for SQL | 8.8 | 0.0203 | | | [CVE-2024-26162](https://patchblox.com/security/data/cve/CVE-2024-26162.md) | High | Windows ODBC Driver | 8.8 | 0.0202 | | | [CVE-2024-21441](https://patchblox.com/security/data/cve/CVE-2024-21441.md) | High | Microsoft WDAC OLE DB provider for SQL | 8.8 | 0.0195 | | | [CVE-2024-21444](https://patchblox.com/security/data/cve/CVE-2024-21444.md) | High | Microsoft WDAC OLE DB provider for SQL | 8.8 | 0.0195 | | | [CVE-2024-21451](https://patchblox.com/security/data/cve/CVE-2024-21451.md) | High | Microsoft WDAC ODBC Driver | 8.8 | 0.0195 | | | [CVE-2024-26159](https://patchblox.com/security/data/cve/CVE-2024-26159.md) | High | Windows ODBC Driver | 8.8 | 0.0195 | | | [CVE-2024-26161](https://patchblox.com/security/data/cve/CVE-2024-26161.md) | High | Microsoft WDAC OLE DB provider for SQL | 8.8 | 0.0195 | | | [CVE-2024-21443](https://patchblox.com/security/data/cve/CVE-2024-21443.md) | High | Windows Kernel | 7.3 | 0.0129 | | | [CVE-2024-26173](https://patchblox.com/security/data/cve/CVE-2024-26173.md) | High | Windows Kernel | 7.8 | 0.0089 | | | [CVE-2024-26178](https://patchblox.com/security/data/cve/CVE-2024-26178.md) | High | Windows Kernel | 7.8 | 0.0089 | | | [CVE-2024-26176](https://patchblox.com/security/data/cve/CVE-2024-26176.md) | High | Windows Kernel | 7.8 | 0.0083 | | | [CVE-2024-21434](https://patchblox.com/security/data/cve/CVE-2024-21434.md) | High | Microsoft Windows SCSI Class System File | 7.8 | 0.0083 | | | [CVE-2024-21442](https://patchblox.com/security/data/cve/CVE-2024-21442.md) | High | Windows USB Print Driver | 7.8 | 0.0083 | | | [CVE-2024-21436](https://patchblox.com/security/data/cve/CVE-2024-21436.md) | High | Windows Installer | 7.8 | 0.0072 | | | [CVE-2024-21432](https://patchblox.com/security/data/cve/CVE-2024-21432.md) | High | Windows Update Stack | 7.0 | 0.0069 | | | [CVE-2024-21446](https://patchblox.com/security/data/cve/CVE-2024-21446.md) | High | Windows NTFS | 7.8 | 0.0066 | | | [CVE-2024-21431](https://patchblox.com/security/data/cve/CVE-2024-21431.md) | High | Windows Hypervisor-Protected Code Integrity | 7.8 | 0.0064 | | | [CVE-2024-21445](https://patchblox.com/security/data/cve/CVE-2024-21445.md) | High | Windows USB Print Driver | 7.0 | 0.0054 | | | [CVE-2024-21439](https://patchblox.com/security/data/cve/CVE-2024-21439.md) | High | Windows Telephony Server | 7.0 | 0.0052 | | | [CVE-2024-26177](https://patchblox.com/security/data/cve/CVE-2024-26177.md) | Routine | Windows Kernel | 5.5 | 0.0112 | | | [CVE-2024-26181](https://patchblox.com/security/data/cve/CVE-2024-26181.md) | Routine | Windows Kernel | 5.5 | 0.0104 | | | [CVE-2024-26174](https://patchblox.com/security/data/cve/CVE-2024-26174.md) | Routine | Windows Kernel | 5.5 | 0.0092 | | | [CVE-2024-21429](https://patchblox.com/security/data/cve/CVE-2024-21429.md) | Routine | Windows USB Hub Driver | 6.8 | 0.0090 | | | [CVE-2024-21430](https://patchblox.com/security/data/cve/CVE-2024-21430.md) | Routine | Windows USB Serial Driver | 5.7 | 0.0071 | | | [CVE-2023-28746](https://patchblox.com/security/data/cve/CVE-2023-28746.md) | Routine | Intel | 6.5 | 0.0055 | | --- Data as of 2026-11-07T18:46:35Z UTC. 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