Microsoft · ServicingStack update · March 10, 2026
KB5078734: March 2026 cumulative update for Windows Server 23H2
KB5078734, released March 10, 2026, fixes 40 CVEs in Windows Server 2022, 23H2 Edition (Server Core installation) (build 25398.2207). None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported.
UrgentUnsupported product
CVEs closed
40
None rated Critical
Exploited
0
None reported
Exploitation more likely
6
Microsoft's assessment
Highest EPSS
0.0516
92nd percentile
Priority of the 40 CVEs
Patch now 0
Urgent 6
High 29
Routine 5
Applies to
| Product | Build after install |
|---|---|
| Windows Server 2022, 23H2 Edition (Server Core installation) | 25398.2207 |
CVEs this fix closes
| Priority | CVE | Component | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| Urgent | CVE-2026-24294 | Windows SMB Server | Elevation of Privilege | 7.8 | 0.0516 | More likely |
| Urgent | CVE-2026-24289 | Windows Kernel | Elevation of Privilege | 7.8 | 0.0488 | More likely |
| Urgent | CVE-2026-23668 | Microsoft Graphics Component | Elevation of Privilege | 7.0 | 0.0387 | More likely |
| Urgent | CVE-2026-25187 | Winlogon | Elevation of Privilege | 7.8 | 0.0341 | More likely |
| Urgent | CVE-2026-24291 | Windows Accessibility Infrastructure (ATBroker.exe) | Elevation of Privilege | 7.8 | 0.0334 | More likely |
| Urgent | CVE-2026-26132 | Windows Kernel | Elevation of Privilege | 7.8 | 0.0217 | More likely |
| High | CVE-2026-25181 | Windows GDI+ | Information Disclosure | 7.5 | 0.0157 | Exploitation Less Likely |
| High | CVE-2026-23674 | Windows MapUrlToZone | Security Feature Bypass | 7.5 | 0.0139 | Exploitation Unlikely |
| High | CVE-2026-25177 | Active Directory Domain Services | Elevation of Privilege | 8.8 | 0.0135 | Exploitation Less Likely |
| High | CVE-2026-23669 | RPC Runtime | Remote Code Execution | 8.8 | 0.0104 | Exploitation Less Likely |
| High | CVE-2026-25172 | Windows Routing and Remote Access Service (RRAS) | Remote Code Execution | 8.0 | 0.0100 | Exploitation Less Likely |
| High | CVE-2026-25173 | Windows Routing and Remote Access Service (RRAS) | Remote Code Execution | 8.0 | 0.0100 | Exploitation Less Likely |
| High | CVE-2026-26111 | Windows Routing and Remote Access Service (RRAS) | Remote Code Execution | 8.0 | 0.0090 | Exploitation Less Likely |
| High | CVE-2026-26128 | Windows SMB Server | Elevation of Privilege | 7.8 | 0.0069 | Exploitation Less Likely |
| High | CVE-2026-25188 | Windows Telephony Service | Elevation of Privilege | 8.8 | 0.0058 | Exploitation Unlikely |
| High | CVE-2026-24293 | Windows Ancillary Function Driver for WinSock | Elevation of Privilege | 7.8 | 0.0057 | Exploitation Less Likely |
| High | CVE-2026-25190 | Windows GDI | Remote Code Execution | 7.8 | 0.0056 | Exploitation Less Likely |
| High | CVE-2026-24285 | Windows Win32K | Elevation of Privilege | 7.0 | 0.0046 | Exploitation Less Likely |
| High | CVE-2026-24283 | Windows File Server | Elevation of Privilege | 8.8 | 0.0043 | Exploitation Less Likely |
| High | CVE-2026-23673 | Windows Resilient File System (ReFS) | Elevation of Privilege | 7.8 | 0.0043 | Exploitation Unlikely |
| High | CVE-2026-25165 | Windows Performance Counters | Elevation of Privilege | 7.8 | 0.0043 | Exploitation Unlikely |
| High | CVE-2026-25176 | Windows Ancillary Function Driver for WinSock | Elevation of Privilege | 7.8 | 0.0042 | Exploitation Less Likely |
| High | CVE-2026-24292 | Connected Devices Platform Service (Cdpsvc) | Elevation of Privilege | 7.8 | 0.0039 | Exploitation Less Likely |
| High | CVE-2026-25174 | Windows Extensible File Allocation | Elevation of Privilege | 7.8 | 0.0039 | Exploitation Unlikely |
| High | CVE-2026-25175 | Windows NTFS | Elevation of Privilege | 7.8 | 0.0039 | Exploitation Less Likely |
Showing 1 to 25 of 40
1Next
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.