SB2026041617 - Microsoft Windows update for AMD IOMMU
Published: April 16, 2026
Security Bulletin ID
SB2026041617
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Buffer overflow (CVE-ID: CVE-2023-20585)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: 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
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.
Remediation
Install update from vendor's website.