Buffer overflow in Windows Server and Windows - CVE-2023-20585
Published: April 16, 2026
Vulnerability identifier: #VU126261
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-20585
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Windows Server
Windows
Windows Server
Windows
Detailed vulnerability description
The vulnerability allows a local user to compromise the target system.
The vulnerability exists due to a boundary error in IOMMU. A local administrator can trigger memory corruption and cause loss of SNP guest data integrity.
How to mitigate CVE-2023-20585
Install updates from vendor's website.