Security
Microsoft security updates and public advisory evidence: affected products, fixing updates, exploitation and source coverage.
Fixed by KB5135386Clear
| CVE | Vulnerability | Severity | CVSS | Impact | Status | Fixed by |
|---|---|---|---|---|---|---|
| CVE-2026-124226 | Microsoft PowerShell Security Feature Bypass VulnerabilityWindows PowerShell | Important | 8.8 | SFBLocal | KB5131085KB5131087+6 | |
| CVE-2026-124225 | Windows PowerShell Remote Code Execution VulnerabilityWindows PowerShell | Important | 7.8 | RCELocal | KB5131077KB5131085+8 | |
| CVE-2026-124224 | PowerShell Elevation of Privilege VulnerabilityWindows PowerShell | Important | 7.0 | EoPLocal | KB5131077KB5131085+8 |
Advisories
MSRC guidance without a CVE of its own · 1 advisory
Hardening changes for ReFS volumes on removable mediaStarting with Windows updates released on and after October 13, 2026, Microsoft is making hardening changes to the Resilient File System (ReFS) . This change is not enable by default until 2027. Please see Hardening changes for ReFS volumes on removable media for more information.