CVE-2021-26424
Windows TCP/IP Remote Code Execution Vulnerability
CVE-2021-26424 is fixed in 40 products on 1 platform, first by KB5005043, released August 10, 2021. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.
Urgent
CVSS
9.9
Critical
Exploitation
More likely
Vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.6113
99th percentile
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Windows 10 Version 1607 for 32-bit Systems | 14393.4583 | KB5005043 | Aug 10, 2021 |
| Windows 10 Version 1607 for x64-based Systems | 14393.4583 | KB5005043 | Aug 10, 2021 |
| Windows 10 Version 1809 for 32-bit Systems | 17763.2114 | KB5005030 | Aug 10, 2021 |
| Windows 10 Version 1809 for ARM64-based Systems | 17763.2114 | KB5005030 | Aug 10, 2021 |
| Windows 10 Version 1809 for x64-based Systems | 17763.2114 | KB5005030 | Aug 10, 2021 |
| Windows 10 Version 1909 for 32-bit Systems | 18363.1734 | KB5005031 | Aug 10, 2021 |
| Windows 10 Version 1909 for ARM64-based Systems | 18363.1734 | KB5005031 | Aug 10, 2021 |
| Windows 10 Version 1909 for x64-based Systems | 18363.1734 | KB5005031 | Aug 10, 2021 |
| Windows 10 Version 2004 for 32-bit Systems | KB5005033 | Aug 10, 2021 | |
| Windows 10 Version 2004 for ARM64-based Systems | KB5005033 | Aug 10, 2021 | |
| Windows 10 Version 2004 for x64-based Systems | KB5005033 | Aug 10, 2021 | |
| Windows 10 Version 20H2 for 32-bit Systems | KB5005033 | Aug 10, 2021 | |
| Windows 10 Version 20H2 for ARM64-based Systems | KB5005033 | Aug 10, 2021 | |
| Windows 10 Version 20H2 for x64-based Systems | KB5005033 | Aug 10, 2021 | |
| Windows 10 Version 21H1 for 32-bit Systems | KB5005033 | Aug 10, 2021 | |
| Windows 10 Version 21H1 for ARM64-based Systems | KB5005033 | Aug 10, 2021 | |
| Windows 10 Version 21H1 for x64-based Systems | KB5005033 | Aug 10, 2021 | |
| Windows 10 for 32-bit Systems | 10240.19022 | KB5005040 | Aug 10, 2021 |
| Windows 10 for x64-based Systems | 10240.19022 | KB5005040 | Aug 10, 2021 |
| Windows 7 for 32-bit Systems Service Pack 1 | KB5005089 | Aug 10, 2021 | |
| Windows 7 for 32-bit Systems Service Pack 1 | KB5005088 | Aug 10, 2021 | |
| Windows 7 for x64-based Systems Service Pack 1 | KB5005089 | Aug 10, 2021 | |
| Windows 7 for x64-based Systems Service Pack 1 | KB5005088 | Aug 10, 2021 | |
| Windows 8.1 for 32-bit systems | KB5005076 | Aug 10, 2021 | |
| Windows 8.1 for 32-bit systems | KB5005106 | Aug 10, 2021 | |
| Windows 8.1 for x64-based systems | KB5005076 | Aug 10, 2021 | |
| Windows 8.1 for x64-based systems | KB5005106 | Aug 10, 2021 | |
| Windows RT 8.1 | KB5005076 | Aug 10, 2021 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB5005089 | Aug 10, 2021 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB5005088 | Aug 10, 2021 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | KB5005089 | Aug 10, 2021 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | KB5005088 | Aug 10, 2021 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 | KB5005095 | Aug 10, 2021 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 | KB5005090 | Aug 10, 2021 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | KB5005095 | Aug 10, 2021 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | KB5005090 | Aug 10, 2021 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 | KB5005095 | Aug 10, 2021 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 | KB5005090 | Aug 10, 2021 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | KB5005095 | Aug 10, 2021 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | KB5005090 | Aug 10, 2021 | |
| Windows Server 2012 | KB5005099 | Aug 10, 2021 | |
| Windows Server 2012 | KB5005094 | Aug 10, 2021 | |
| Windows Server 2012 (Server Core installation) | KB5005099 | Aug 10, 2021 | |
| Windows Server 2012 (Server Core installation) | KB5005094 | Aug 10, 2021 | |
| Windows Server 2012 R2 | KB5005076 | Aug 10, 2021 | |
| Windows Server 2012 R2 | KB5005106 | Aug 10, 2021 | |
| Windows Server 2012 R2 (Server Core installation) | KB5005076 | Aug 10, 2021 | |
| Windows Server 2012 R2 (Server Core installation) | KB5005106 | Aug 10, 2021 | |
| Windows Server 2016 | 14393.4583 | KB5005043 | Aug 10, 2021 |
| Windows Server 2016 (Server Core installation) | 14393.4583 | KB5005043 | Aug 10, 2021 |
| Windows Server 2019 | 17763.2114 | KB5005030 | Aug 10, 2021 |
| Windows Server 2019 (Server Core installation) | 17763.2114 | KB5005030 | Aug 10, 2021 |
| Windows Server, version 2004 (Server Core installation) | KB5005033 | Aug 10, 2021 | |
| Windows Server, version 20H2 (Server Core Installation) | KB5005033 | Aug 10, 2021 | |
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