# KB5035856: March 2024 cumulative update for Windows Server 23H2 KB5035856, released March 12, 2024, fixes 36 CVEs in Windows Server 2022, 23H2 Edition (Server Core installation) (build 25398.763). One of them is being exploited (CVE-2024-26169); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported. - Web page: https://patchblox.com/security/fix/microsoft/kb5035856 - Platform: Microsoft - Released: Mar 12, 2024 - Priority: Patch now (Closes CVE-2024-26169, exploited (CISA KEV, ransomware)) - CVEs: 36, exploited: 1, on CISA KEV: 1 - Vendor advisory: https://support.microsoft.com/help/5035856 ## Applies to | Product | Release | Fixed in | |---|---|---| | [Windows Server 2022, 23H2 Edition (Server Core installation)](https://patchblox.com/security/data/product/microsoft/windows-server-2022-23h2-edition-server-core-installation.md) | | 25398.763 | ## 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-2024-26160](https://patchblox.com/security/data/cve/CVE-2024-26160.md) | Urgent | Windows Cloud Files Mini Filter Driver | 5.5 | 0.1137 | More likely | | [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-2024-21433](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-2024-26190](https://patchblox.com/security/data/cve/CVE-2024-26190.md) | High | Microsoft QUIC | 7.5 | 0.0299 | | | [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 2026-11-07T06:34:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo