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Microsoft Windows 11 version 26H1 vulnerabilities

2543 known vulnerabilities, 5 confirmed exploited in the wild (CISA KEV), 2545 published in the last 12 months.

Check whether your Microsoft Windows 11 version 26H1 version is affected

Exploited Microsoft Windows 11 version 26H1 vulnerabilities

• CVE-2026-96951 — Windows Shell Security Feature Bypass Vulnerability
• CVE-2026-81963 — Microsoft Windows Link Following Vulnerability
• CVE-2026-33824 — Microsoft Internet Key Exchange (IKE) Service Extensions Double Free Vulnerability
• CVE-2026-68820 — Microsoft Windows Ancillary Function Driver for WinSock Use-After-Free Vulnerability
• CVE-2026-32202 — Microsoft Windows Protection Mechanism Failure Vulnerability

Latest Microsoft Windows 11 version 26H1 vulnerabilities

• CVE-2026-97844 — Role: DNS Server Information Disclosure Vulnerability (CVSS 6.5)
• CVE-2026-97843 — Role: DNS Server Information Disclosure Vulnerability (CVSS 6.5)
• CVE-2026-97842 — Role: DNS Server Information Disclosure Vulnerability (CVSS 6.5)
• CVE-2026-97841 — Role: DNS Server Information Disclosure Vulnerability (CVSS 6.5)
• CVE-2026-97840 — Role: DNS Server Information Disclosure Vulnerability (CVSS 6.5)
• CVE-2026-97839 — Role: DNS Server Information Disclosure Vulnerability (CVSS 6.5)
• CVE-2026-97838 — Role: DNS Server Information Disclosure Vulnerability (CVSS 6.5)
• CVE-2026-97837 — Role: DNS Server Information Disclosure Vulnerability (CVSS 6.5)
• CVE-2026-97836 — Role: DNS Server Information Disclosure Vulnerability (CVSS 6.5)
• CVE-2026-97835 — Role: DNS Server Information Disclosure Vulnerability (CVSS 6.5)
• CVE-2026-97834 — Role: DNS Server Information Disclosure Vulnerability (CVSS 6.5)
• CVE-2026-97833 — Role: DNS Server Information Disclosure Vulnerability (CVSS 6.5)
• CVE-2026-97832 — Role: DNS Server Information Disclosure Vulnerability (CVSS 6.5)
• CVE-2026-97831 — Role: DNS Server Information Disclosure Vulnerability (CVSS 6.5)
• CVE-2026-97830 — Windows Internet Information Services Denial of Service Vulnerability (CVSS 7.5)
• CVE-2026-97829 — Role: DNS Server Information Disclosure Vulnerability (CVSS 6.5)
• CVE-2026-97828 — Role: DNS Server Information Disclosure Vulnerability (CVSS 6.5)
• CVE-2026-97827 — Role: DNS Server Information Disclosure Vulnerability (CVSS 6.5)
• CVE-2026-97826 — Role: DNS Server Information Disclosure Vulnerability (CVSS 6.5)
• CVE-2026-97825 — Role: DNS Server Information Disclosure Vulnerability (CVSS 6.5)
• CVE-2026-97824 — Role: DNS Server Information Disclosure Vulnerability (CVSS 6.5)
• CVE-2026-97823 — Role: DNS Server Information Disclosure Vulnerability (CVSS 6.5)
• CVE-2026-97822 — Role: DNS Server Information Disclosure Vulnerability (CVSS 6.5)
• CVE-2026-97821 — Role: DNS Server Information Disclosure Vulnerability (CVSS 6.5)
• CVE-2026-97820 — Role: DNS Server Information Disclosure Vulnerability (CVSS 6.5)