HIGH 8.4 Microsoft
CVE-2026-23213
drm/amd/pm: Disable MMIO access during SMU Mode 1 reset
Microsoft Security Update 2026-Aug: drm/amd/pm: Disable MMIO access during SMU Mode 1 reset
Affected Products
- azl3 kernel 6.6.121.1-1 on Azure Linux 3.0
- cbl2 kernel 5.15.200.1-1 on CBL Mariner 2.0
- cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0
- azl3 kernel 6.6.134.1-2 on Azure Linux 3.0
- azl3 kernel 6.6.138.1-1 on Azure Linux 3.0
- azl3 kernel 6.6.143.1-1 on Azure Linux 3.0
- azl3 kernel 6.6.144.1-1 on Azure Linux 3.0
- azl3 kernel 6.6.145.2-1 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23213
- https://nvd.nist.gov/vuln/detail/CVE-2026-23213
This high severity vulnerability with a CVSS score of 8.4 was published on 2026-08-06 via Microsoft. Affected: azl3 kernel 6.6.121.1-1 on Azure Linux 3.0, cbl2 kernel 5.15.200.1-1 on CBL Mariner 2.0, cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0 and 5 more.
vulnfeed aggregates 8893 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.