Security

CVE detail from Microsoft's public MSRC CVRF API, cross-checked with CISA's Known Exploited Vulnerabilities catalog. Counts cover Microsoft-issued CVEs; republished third-party CVEs such as Chromium or Linux are hidden unless you include them.

Security Update Guide CISA KEV

CVEs · all collected releases

612 matches · most urgent first CSV Text

Fixed by KB5126835Clear

CVE	Vulnerability	Severity	CVSS	EPSS	Impact	Status	Fixed by
CVE-2026-70195	Windows Ancillary Function Driver for WinSock Information Disclosure VulnerabilityWindows Ancillary Function Driver for WinSock	Important	4.7	0.2%	Information DisclosureLocal	Fix has a known issue	KB5126646 KB5126651+8
CVE-2026-83582	Windows Graphics Kernel Information Disclosure VulnerabilityWindows Graphics Kernel	Important	4.7	0.3%	Information DisclosureLocal	Fix has a known issue	KB5126646 KB5126651+8
CVE-2026-83672	Windows Installer Information Disclosure VulnerabilityWindows Installer	Important	4.7	0.4%	Information DisclosureLocal	Fix has a known issue	KB5126646 KB5126651+8
CVE-2026-83774	Windows Win32 Kernel Subsystem Information Disclosure VulnerabilityWindows Win32 Kernel Subsystem	Important	4.7	0.4%	Information DisclosureLocal	Fix has a known issue	KB5126646 KB5126651+8
CVE-2026-83786	Windows NTFS Information Disclosure VulnerabilityWindows NTFS	Important	4.7	0.4%	Information DisclosureLocal	Fix has a known issue	KB5126646 KB5126651+8
CVE-2026-83865	Windows Internet (wininet.dll) Tampering VulnerabilityWindows Internet (wininet.dll)	Important	4.7	0.3%	TamperingLocal	Fix has a known issue	KB5126646 KB5126651+8
CVE-2026-83897	Windows Win32 Kernel Subsystem Information Disclosure VulnerabilityWindows Win32 Kernel Subsystem	Important	4.7	0.4%	Information DisclosureLocal	Fix has a known issue	KB5126646 KB5126651+8
CVE-2026-83909	Windows Win32 Kernel Subsystem Information Disclosure VulnerabilityWindows Win32 Kernel Subsystem	Important	4.7	0.4%	Information DisclosureLocal	Fix has a known issue	KB5126646 KB5126651+8
CVE-2026-83925	Windows Kernel Information Disclosure VulnerabilityWindows Kernel	Important	4.7	0.4%	Information DisclosureLocal	Fix has a known issue	KB5126646 KB5126651+7
CVE-2026-96853	Windows Win32 Kernel Subsystem Information Disclosure VulnerabilityWindows Win32 Kernel Subsystem	Important	4.7	0.2%	Information DisclosureLocal	Fix has a known issue	KB5126646 KB5126651+8
CVE-2026-83788	Windows rndismp6.sys Information Disclosure VulnerabilityWindows RNDIS	Important	4.6	0.5%	Information DisclosurePhysical	Fix has a known issue	KB5126646 KB5126651+8
CVE-2026-88226	Windows Storage Port Driver Information Disclosure VulnerabilityWindows Storage Port Driver	Important	4.6	0.5%	Information DisclosurePhysical	Fix has a known issue	KB5126646 KB5126651+8

Advisories

MSRC guidance without a CVE of its own · 1 advisory

ADV260001

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.

Published 13 Oct28 affected products