CVE-2026-23669: RPC Runtime Library Remote Code Execution Vulnerability
Published Mar 10, 2026
·Updated
RPC Runtime Library Remote Code Execution Vulnerability
Other sources
Use after free in RPC Runtime allows an authorized attacker to execute code over a network.
— Microsoft
Affected Software
56 affected componentsFixes available
Microsoft Windows Server 2012 R2
Microsoft Windows Server 2012
Microsoft Windows Server 2012
Microsoft Windows Server 2016
Microsoft Windows Server 2012 R2
Microsoft Windows Server 2016
Microsoft Windows 10=1607
Microsoft Windows 10=1607
Microsoft Windows 11=24H2
Microsoft Windows 11=24H2
Microsoft Windows 11=23H2
Microsoft Windows 11=23H2
Microsoft Windows Server 2022, 23H2 Edition
Microsoft Windows 11=25H2
Microsoft Windows 10=22H2
Microsoft Windows 10=22H2
Microsoft Windows 10=21H2
Microsoft Windows 10=21H2
Microsoft Windows 10=22H2
Microsoft Windows Server 2019
Microsoft Windows 10=21H2
Microsoft Windows Server 2019
Microsoft Windows 10=1809
Microsoft Windows 10=1809
Microsoft Windows 11=26H1
Microsoft Windows 11=26H1
Microsoft Windows Server 2025
Microsoft Windows Server 2025
Microsoft Windows Server 2022
Microsoft Windows Server 2022
Microsoft Windows 10 1607<10.0.14393.8957
Microsoft Windows 10 1607<10.0.14393.8957
Microsoft Windows 10 1809<10.0.17763.8511
Microsoft Windows 10 1809<10.0.17763.8511
Microsoft Windows 10 21h2<10.0.19044.7058
Microsoft Windows 10 21h2<10.0.19044.7058
Microsoft Windows 10 21h2<10.0.19044.7058
Microsoft Windows 10 22h2<10.0.19045.7058
Microsoft Windows 10 22h2<10.0.19045.7058
Microsoft Windows 10 22h2<10.0.19045.7058
Microsoft Windows 11 23h2<10.0.22631.6783
Microsoft Windows 11 23h2<10.0.22631.6783
Microsoft Windows 11 24h2<10.0.26100.7979
Microsoft Windows 11 24h2<10.0.26100.7979
Microsoft Windows 11 25h2<10.0.26200.7979
Microsoft Windows 11 25h2<10.0.26200.7979
Microsoft Windows 11 26h1<10.0.28000.1719
Microsoft Windows 11 26h1<10.0.28000.1719
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
Microsoft Windows Server 2016<10.0.14393.8957
Microsoft Windows Server 2019<10.0.17763.8511
Microsoft Windows Server 2022<10.0.20348.4830
Microsoft Windows Server 2022 23h2<10.0.25398.2207
Microsoft Windows Server 2025<10.0.26100.32463
Microsoft Windows 11 for ARM systems=25H2
Event History
Mar 10, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Description
CVE Published
via MITRE·05:04 PM
Data Sourced
via MITRE·05:04 PM
DescriptionSeverity
Data Sourced
via NVD·06:18 PM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-23669?
CVE-2026-23669 is rated as critical due to its potential for remote code execution.
2
How do I fix CVE-2026-23669?
To mitigate CVE-2026-23669, apply the latest security updates provided by Microsoft for the affected Windows systems.
3
What systems are affected by CVE-2026-23669?
CVE-2026-23669 affects various versions of Windows Server and Windows 10, along with Windows 11 and Server 2025 depending on specific configurations.
4
What type of attack can exploit CVE-2026-23669?
CVE-2026-23669 can be exploited by an authorized attacker to execute arbitrary code remotely over a network.
5
Is CVE-2026-23669 currently being exploited in the wild?
As of now, there are reports indicating that CVE-2026-23669 may be actively exploited, hence immediate patching is recommended.