CVE-2026-70585: Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability
Use after free in Windows Services for NFS ONCRPC XDR Driver allows an authorized attacker to execute code locally.
Other sources
Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.3.9600.23397Patch KB5123066 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.2.9200.26349Patch KB5123065 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.14393.9512Patch KB5123099 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33438Patch KB5122871 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5622Patch KB5122882 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.9245Patch KB5122876
Event History
Frequently Asked Questions
Who can exploit this vulnerability?
An attacker must already be authorized and have local access to the affected Windows Server system. The supplied data does not indicate that unauthenticated or remote network exploitation is possible.
Which systems are identified as affected?
The affected software list includes Microsoft Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019, Windows Server 2022, and Windows Server 2025.
What level of impact could successful exploitation have?
Successful exploitation may allow code execution and is rated high severity. The provided vector indicates high potential impact to confidentiality, integrity, and availability.