Microsoft · Security update · October 13, 2026
KB5126646: October 2026 cumulative update for Windows Server 2022
KB5126646, released October 13, 2026, fixes 1,041 CVEs across 2 products. One of them is being exploited (CVE-2026-96951); 1 on CISA KEV. Patch Radar priority: Patch now.
Patch now1 on CISA KEV
CVEs closed
1,041
35 rated Critical
Exploited
1
CVE-2026-96951
Exploitation more likely
100
Vendor assessment
Highest EPSS
0.0981
95th percentile
Priority of the 1,041 CVEs
Patch now 1
Urgent 134
High 637
Routine 269
Applies to
| Product | Build after install |
|---|---|
| Windows Server 2025 | 26100.33650 |
| Windows Server 2025 (Server Core installation) | 26100.33650 |
CVEs this fix closes
| Priority | CVE | Component | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| Patch now | CVE-2026-96951 | Windows Shell | Security Feature Bypass | 8.8 | 0.0981 | KEVExploited |
| Urgent | CVE-2026-105016 | Microsoft QUIC | Remote Code Execution | 9.8 | 0.0166 | Exploitation Less Likely |
| Urgent | CVE-2026-88159 | Windows Background Intelligent Transfer Service (BITS) | Remote Code Execution | 8.8 | 0.0142 | More likely |
| Urgent | CVE-2026-102217 | WebDAV | Elevation of Privilege | 8.8 | 0.0126 | More likely |
| Urgent | CVE-2026-100202 | Windows Message Queuing Queue Manager | Remote Code Execution | 9.8 | 0.0111 | Exploitation Less Likely |
| Urgent | CVE-2026-100219 | Microsoft QUIC | Remote Code Execution | 9.8 | 0.0111 | Exploitation Less Likely |
| Urgent | CVE-2026-97814 | Windows Text Shaping | Remote Code Execution | 9.8 | 0.0109 | Exploitation Less Likely |
| Urgent | CVE-2026-70147 | Microsoft PostScript Printer Driver | Remote Code Execution | 9.8 | 0.0107 | Exploitation Less Likely |
| Urgent | CVE-2026-70153 | Microsoft PostScript Printer Driver | Remote Code Execution | 9.8 | 0.0107 | Exploitation Less Likely |
| Urgent | CVE-2026-70229 | Active Directory Domain Services | Remote Code Execution | 8.1 | 0.0104 | More likely |
| Urgent | CVE-2026-108467 | Microsoft PostScript Printer Driver | Remote Code Execution | 8.8 | 0.0100 | Exploitation Less Likely |
| Urgent | CVE-2026-96934 | Windows DHCP Server | Remote Code Execution | 9.8 | 0.0094 | Exploitation Less Likely |
| Urgent | CVE-2026-100220 | Windows Media Video Decoder | Remote Code Execution | 8.8 | 0.0093 | Exploitation Less Likely |
| Urgent | CVE-2026-96952 | Microsoft Windows Media Foundation | Remote Code Execution | 8.8 | 0.0090 | Exploitation Less Likely |
| Urgent | CVE-2026-102225 | Windows Text Shaping | Remote Code Execution | 8.8 | 0.0089 | Exploitation Less Likely |
| Urgent | CVE-2026-83934 | Windows GDI+ | Remote Code Execution | 8.8 | 0.0089 | Exploitation Less Likely |
| Urgent | CVE-2026-108131 | Active Directory Federation Services (AD FS) | Spoofing | 7.5 | 0.0087 | Exploitation Less Likely |
| Urgent | CVE-2026-70187 | Remote Desktop Gateway Service | Remote Code Execution | 8.1 | 0.0078 | Exploitation Less Likely |
| Urgent | CVE-2026-108457 | Microsoft Windows PDF | Remote Code Execution | 8.1 | 0.0076 | Exploitation Less Likely |
| Urgent | CVE-2026-108460 | Windows Message Queuing | Remote Code Execution | 8.1 | 0.0076 | Exploitation Less Likely |
| Urgent | CVE-2026-88119 | Windows DHCP Server | Remote Code Execution | 8.1 | 0.0076 | Exploitation Less Likely |
| Urgent | CVE-2026-88120 | Windows DHCP Server | Remote Code Execution | 8.1 | 0.0076 | Exploitation Less Likely |
| Urgent | CVE-2026-88117 | Windows DHCP Server | Remote Code Execution | 8.1 | 0.0070 | Exploitation Less Likely |
| Urgent | CVE-2026-88171 | Windows DHCP Server | Remote Code Execution | 8.1 | 0.0069 | Exploitation Less Likely |
| Urgent | CVE-2026-69452 | Windows Enterprise App Management | Elevation of Privilege | 7.1 | 0.0066 | More likely |
Showing 1 to 25 of 1,041
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