# KB5034830: February 2024 security update KB5034830, released February 13, 2024, fixes 30 CVEs across 4 products. None of them is reported as exploited. Patch Radar priority: Urgent. - Web page: https://patchblox.com/security/fix/microsoft/kb5034830 - Platform: Microsoft - Released: Feb 13, 2024 - Priority: Urgent (Closes CVE-2024-21357, exploitation more likely) - CVEs: 30, exploited: 0, on CISA KEV: 0 - Vendor advisory: https://support.microsoft.com/help/5034830 ## Applies to | Product | Release | Fixed in | |---|---|---| | [Microsoft Defender for Endpoint for Windows on Windows Server 2012](https://patchblox.com/security/data/product/microsoft/microsoft-defender-for-endpoint-for-windows-on-windows-server-2012.md) | | | | [Microsoft Defender for Endpoint for Windows on Windows Server 2012 (Server Core installation)](https://patchblox.com/security/data/product/microsoft/microsoft-defender-for-endpoint-for-windows-on-windows-server-2012-server-core-installation.md) | | | | [Windows Server 2012](https://patchblox.com/security/data/product/microsoft/windows-server-2012.md) | | | | [Windows Server 2012 (Server Core installation)](https://patchblox.com/security/data/product/microsoft/windows-server-2012-server-core-installation.md) | | | ## CVEs this fix closes | CVE | Priority | Component | CVSS | EPSS | Exploitation | |---|---|---|---:|---:|---| | [CVE-2024-21357](https://patchblox.com/security/data/cve/CVE-2024-21357.md) | Urgent | Windows Internet Connection Sharing (ICS) | 8.1 | 0.2690 | More likely | | [CVE-2024-21371](https://patchblox.com/security/data/cve/CVE-2024-21371.md) | Urgent | Windows Kernel | 7.0 | 0.1088 | More likely | | [CVE-2023-50387](https://patchblox.com/security/data/cve/CVE-2023-50387.md) | High | Role: DNS Server | 7.5 | 0.9999 | | | [CVE-2024-21348](https://patchblox.com/security/data/cve/CVE-2024-21348.md) | High | Windows Internet Connection Sharing (ICS) | 7.5 | 0.0218 | | | [CVE-2024-21372](https://patchblox.com/security/data/cve/CVE-2024-21372.md) | High | Windows OLE | 8.8 | 0.0181 | | | [CVE-2024-21358](https://patchblox.com/security/data/cve/CVE-2024-21358.md) | High | Microsoft WDAC OLE DB provider for SQL | 8.8 | 0.0177 | | | [CVE-2024-21360](https://patchblox.com/security/data/cve/CVE-2024-21360.md) | High | Microsoft WDAC OLE DB provider for SQL | 8.8 | 0.0177 | | | [CVE-2024-21365](https://patchblox.com/security/data/cve/CVE-2024-21365.md) | High | Microsoft WDAC OLE DB provider for SQL | 8.8 | 0.0177 | | | [CVE-2024-21366](https://patchblox.com/security/data/cve/CVE-2024-21366.md) | High | Microsoft WDAC OLE DB provider for SQL | 8.8 | 0.0177 | | | [CVE-2024-21370](https://patchblox.com/security/data/cve/CVE-2024-21370.md) | High | Microsoft WDAC OLE DB provider for SQL | 8.8 | 0.0177 | | | [CVE-2024-21420](https://patchblox.com/security/data/cve/CVE-2024-21420.md) | High | Microsoft WDAC OLE DB provider for SQL | 8.8 | 0.0173 | | | [CVE-2024-21375](https://patchblox.com/security/data/cve/CVE-2024-21375.md) | High | Microsoft WDAC OLE DB provider for SQL | 8.8 | 0.0165 | | | [CVE-2024-21349](https://patchblox.com/security/data/cve/CVE-2024-21349.md) | High | Microsoft ActiveX | 8.8 | 0.0164 | | | [CVE-2024-21359](https://patchblox.com/security/data/cve/CVE-2024-21359.md) | High | Microsoft WDAC OLE DB provider for SQL | 8.8 | 0.0164 | | | [CVE-2024-21361](https://patchblox.com/security/data/cve/CVE-2024-21361.md) | High | Microsoft WDAC OLE DB provider for SQL | 8.8 | 0.0164 | | | [CVE-2024-21367](https://patchblox.com/security/data/cve/CVE-2024-21367.md) | High | Microsoft WDAC OLE DB provider for SQL | 8.8 | 0.0164 | | | [CVE-2024-21368](https://patchblox.com/security/data/cve/CVE-2024-21368.md) | High | Microsoft WDAC OLE DB provider for SQL | 8.8 | 0.0164 | | | [CVE-2024-21352](https://patchblox.com/security/data/cve/CVE-2024-21352.md) | High | Microsoft WDAC OLE DB provider for SQL | 8.8 | 0.0163 | | | [CVE-2024-21391](https://patchblox.com/security/data/cve/CVE-2024-21391.md) | High | Microsoft WDAC OLE DB provider for SQL | 8.8 | 0.0163 | | | [CVE-2024-21369](https://patchblox.com/security/data/cve/CVE-2024-21369.md) | High | Microsoft WDAC OLE DB provider for SQL | 8.8 | 0.0155 | | | [CVE-2024-21350](https://patchblox.com/security/data/cve/CVE-2024-21350.md) | High | Microsoft WDAC OLE DB provider for SQL | 8.8 | 0.0148 | | | [CVE-2024-21347](https://patchblox.com/security/data/cve/CVE-2024-21347.md) | High | SQL Server | 7.5 | 0.0137 | | | [CVE-2024-21406](https://patchblox.com/security/data/cve/CVE-2024-21406.md) | High | Microsoft Windows | 7.5 | 0.0086 | | | [CVE-2024-21363](https://patchblox.com/security/data/cve/CVE-2024-21363.md) | High | Windows Message Queuing | 7.8 | 0.0080 | | | [CVE-2024-21315](https://patchblox.com/security/data/cve/CVE-2024-21315.md) | High | Microsoft Defender for Endpoint | 7.8 | 0.0064 | | | [CVE-2024-21354](https://patchblox.com/security/data/cve/CVE-2024-21354.md) | High | Windows Message Queuing | 7.8 | 0.0061 | | | [CVE-2024-21405](https://patchblox.com/security/data/cve/CVE-2024-21405.md) | High | Windows Message Queuing | 7.0 | 0.0038 | | | [CVE-2024-21355](https://patchblox.com/security/data/cve/CVE-2024-21355.md) | High | Windows Message Queuing | 7.0 | 0.0032 | | | [CVE-2024-21356](https://patchblox.com/security/data/cve/CVE-2024-21356.md) | Routine | Windows LDAP - Lightweight Directory Access Protocol | 6.5 | 0.0208 | | | [CVE-2024-21340](https://patchblox.com/security/data/cve/CVE-2024-21340.md) | Routine | Windows Kernel | 4.6 | 0.0075 | | --- Data as of 2026-11-08T06:59:42Z 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 Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.