Microsoft · Security update · March 9, 2021
KB5000802: March 2021 cumulative update for Windows 10 2004
KB5000802, released March 9, 2021, fixes 50 CVEs across 20 products. 2 of them are being exploited (CVE-2021-26411); 2 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.
Patch now2 on CISA KEVKnown ransomware use2 publicly disclosedUnsupported product
CVEs closed
50
4 rated Critical
Exploited
2
CVE-2021-26411
Exploitation more likely
5
Microsoft's assessment
Highest EPSS
0.8167
99th percentile
Priority of the 50 CVEs
Patch now 2
Urgent 7
High 35
Routine 6
Applies to
CVEs this fix closes
| Priority | CVE | Component | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| Patch now | CVE-2021-26411 | Internet Explorer | Remote Code Execution | 8.8 | 0.8167 | KEVRansomwareDisclosedExploited |
| Patch now | CVE-2021-27085 | Internet Explorer | Remote Code Execution | 8.8 | 0.0545 | KEVExploited |
| Urgent | CVE-2021-26877 | Role: DNS Server | Remote Code Execution | 9.8 | 0.1729 | More likely |
| Urgent | CVE-2021-26863 | Microsoft Graphics Component | Elevation of Privilege | 7.0 | 0.1194 | More likely |
| Urgent | CVE-2021-26897 | Role: DNS Server | Remote Code Execution | 9.8 | 0.1164 | More likely |
| Urgent | CVE-2021-26868 | Microsoft Graphics Component | Elevation of Privilege | 7.8 | 0.0308 | More likely |
| Urgent | CVE-2021-26876 | Microsoft Graphics Component | Remote Code Execution | 8.8 | 0.0292 | Exploitation Less Likely |
| Urgent | CVE-2021-26867 | Role: Windows Hyper-V | Remote Code Execution | 9.9 | 0.0287 | Exploitation Less Likely |
| Urgent | CVE-2021-24095 | Windows DirectX | Elevation of Privilege | 7.0 | 0.0081 | More likely |
| High | CVE-2021-26896 | Role: DNS Server | Denial of Service | 7.5 | 0.0785 | Exploitation Less Likely |
| High | CVE-2021-26894 | Role: DNS Server | Remote Code Execution | 9.8 | 0.0776 | Exploitation Less Likely |
| High | CVE-2021-26895 | Role: DNS Server | Remote Code Execution | 9.8 | 0.0776 | Exploitation Less Likely |
| High | CVE-2021-26893 | Role: DNS Server | Remote Code Execution | 9.8 | 0.0702 | Exploitation Less Likely |
| High | CVE-2021-27063 | Role: DNS Server | Denial of Service | 7.5 | 0.0673 | Exploitation Less Likely |
| High | CVE-2021-27070 | Windows Update Assistant | Elevation of Privilege | 7.3 | 0.0413 | Exploitation Less Likely |
| High | CVE-2021-26879 | Role: Windows Hyper-V | Denial of Service | 7.5 | 0.0387 | Exploitation Less Likely |
| High | CVE-2021-24090 | Windows Error Reporting | Elevation of Privilege | 7.8 | 0.0352 | Exploitation Less Likely |
| High | CVE-2021-26885 | Windows WalletService | Elevation of Privilege | 7.8 | 0.0349 | Exploitation Less Likely |
| High | CVE-2021-26861 | Microsoft Graphics Component | Remote Code Execution | 7.8 | 0.0289 | Exploitation Less Likely |
| High | CVE-2021-26881 | Windows Media | Remote Code Execution | 7.5 | 0.0283 | Exploitation Less Likely |
| High | CVE-2021-26900 | Windows Win32K | Elevation of Privilege | 7.8 | 0.0245 | Exploitation Less Likely |
| High | CVE-2021-26882 | Windows Remote Access API | Elevation of Privilege | 7.8 | 0.0211 | Exploitation Less Likely |
| High | CVE-2021-27077 | Microsoft Graphics Component | Elevation of Privilege | 7.8 | 0.0144 | DisclosedExploitation Less Likely |
| High | CVE-2021-26871 | Windows WalletService | Elevation of Privilege | 7.8 | 0.0143 | Exploitation Less Likely |
| High | CVE-2021-26862 | Windows Installer | Elevation of Privilege | 7.0 | 0.0125 | Exploitation Less Likely |
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