Use After Free in Microsoft Windows Server 2012
CVE-2026-70585
Use after free in Windows Services for NFS ONCRPC XDR Driver allows an authorized attacker to execute code locally.
Vulnerability class: Use-After-Free
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Microsoft Windows Server 2012
- Microsoft Windows Server 2012 R2
- Microsoft Windows Server 2012 R2 (Server Core Installation)
- Microsoft Windows Server 2012 (Server Core Installation)
- Microsoft Windows Server 2016
- Microsoft Windows Server 2016 (Server Core Installation)
- Microsoft Windows Server 2019
- Microsoft Windows Server 2019 (Server Core Installation)
- Microsoft Windows Server 2022
- Microsoft Windows Server 2025
Weakness classification (CWE)
References
- secure@microsoft.com (vendor-advisory, patch)
Frequently asked questions
- What is CVE-2026-70585?
- CVE-2026-70585 is a high-severity vulnerability in Microsoft Windows Server 2012, classified under Use After Free. CVSS score: 7.0/10. Published 2026-09-08.
- How severe is CVE-2026-70585?
- High severity. CVSS v3 base score is 7.0 out of 10.