CVE-2026-23669
RPC Runtime Library Remote Code Execution Vulnerability
CVE-2026-23669 is fixed in 31 products on 1 platform, first by KB5078938, released March 10, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
8.8
Important
Exploitation
None reported
Exploitation Less Likely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0104
64th percentile
<p>Use after free in RPC Runtime allows an authorized attacker to execute code over a network.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Windows 10 Version 1607 for 32-bit Systems | 14393.8957 | KB5078938 | Mar 10, 2026 |
| Windows 10 Version 1607 for x64-based Systems | 14393.8957 | KB5078938 | Mar 10, 2026 |
| Windows 10 Version 1809 for 32-bit Systems | 17763.8511 | KB5078752 | Mar 10, 2026 |
| Windows 10 Version 1809 for x64-based Systems | 17763.8511 | KB5078752 | Mar 10, 2026 |
| Windows 10 Version 21H2 for 32-bit Systems | KB5078885 | Mar 10, 2026 | |
| Windows 10 Version 21H2 for ARM64-based Systems | KB5078885 | Mar 10, 2026 | |
| Windows 10 Version 21H2 for x64-based Systems | KB5078885 | Mar 10, 2026 | |
| Windows 10 Version 22H2 for 32-bit Systems | KB5078885 | Mar 10, 2026 | |
| Windows 10 Version 22H2 for ARM64-based Systems | KB5078885 | Mar 10, 2026 | |
| Windows 10 Version 22H2 for x64-based Systems | KB5078885 | Mar 10, 2026 | |
| Windows 11 Version 23H2 for ARM64-based Systems | 22631.6783 | KB5078883 | Mar 10, 2026 |
| Windows 11 Version 23H2 for x64-based Systems | 22631.6783 | KB5078883 | Mar 10, 2026 |
| Windows 11 Version 24H2 for ARM64-based Systems | KB5079473 | Mar 10, 2026 | |
| Windows 11 Version 24H2 for ARM64-based Systems | KB5079420 | Mar 10, 2026 | |
| Windows 11 Version 24H2 for x64-based Systems | KB5079473 | Mar 10, 2026 | |
| Windows 11 Version 24H2 for x64-based Systems | KB5079420 | Mar 10, 2026 | |
| Windows 11 Version 25H2 for ARM64-based Systems | KB5079473 | Mar 10, 2026 | |
| Windows 11 Version 25H2 for ARM64-based Systems | KB5079420 | Mar 10, 2026 | |
| Windows 11 Version 25H2 for x64-based Systems | KB5079473 | Mar 10, 2026 | |
| Windows 11 Version 25H2 for x64-based Systems | KB5079420 | Mar 10, 2026 | |
| Windows 11 Version 26H1 for ARM64-based Systems | 28000.1719 | KB5079466 | Mar 10, 2026 |
| Windows 11 version 26H1 for x64-based Systems | 28000.1719 | KB5079466 | Mar 10, 2026 |
| Windows Server 2012 | KB5078775 | Mar 10, 2026 | |
| Windows Server 2012 (Server Core installation) | KB5078775 | Mar 10, 2026 | |
| Windows Server 2012 R2 | KB5078774 | Mar 10, 2026 | |
| Windows Server 2012 R2 (Server Core installation) | KB5078774 | Mar 10, 2026 | |
| Windows Server 2016 | 14393.8957 | KB5078938 | Mar 10, 2026 |
| Windows Server 2016 (Server Core installation) | 14393.8957 | KB5078938 | Mar 10, 2026 |
| Windows Server 2019 | 17763.8511 | KB5078752 | Mar 10, 2026 |
| Windows Server 2019 (Server Core installation) | 17763.8511 | KB5078752 | Mar 10, 2026 |
| Windows Server 2022 | 20348.4893 | KB5078766 | Mar 10, 2026 |
| Windows Server 2022 | 20348.4830 | KB5078737 | Mar 10, 2026 |
| Windows Server 2022 (Server Core installation) | 20348.4893 | KB5078766 | Mar 10, 2026 |
| Windows Server 2022 (Server Core installation) | 20348.4830 | KB5078737 | Mar 10, 2026 |
| Windows Server 2022, 23H2 Edition (Server Core installation) | 25398.2207 | KB5078734 | Mar 10, 2026 |
| Windows Server 2025 | 26100.32463 | KB5078736 | Mar 10, 2026 |
| Windows Server 2025 | 26100.32522 | KB5078740 | Mar 10, 2026 |
| Windows Server 2025 (Server Core installation) | 26100.32463 | KB5078736 | Mar 10, 2026 |
| Windows Server 2025 (Server Core installation) | 26100.32522 | KB5078740 | Mar 10, 2026 |
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