CVE-2026-85818: microsoft windows_11_23h2, microsoft windows_11_24h2, microsoft windows_11_25h2

CVSS 9.0 (critical) · published 2026-10-13

Improper verification of cryptographic signature in Windows Schannel allows an unauthorized attacker to perform spoofing over a network.

Affected products (NVD): microsoft windows_11_23h2, microsoft windows_11_24h2, microsoft windows_11_25h2, microsoft windows_11_26h1, microsoft windows_11_26h2, microsoft windows_server_2022, microsoft windows_server_2025

Fixed in (NVD): 10.0.22631.7652, 10.0.26100.9711, 10.0.26200.9711, 10.0.28000.3231, 10.0.26300.9711, 10.0.20348.5761, 10.0.26100.33650

Weakness: CWE-347

Source: NVD CVE-2026-85818

References

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