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CVE-2026-105005

8.1 high SSVC exploitation: none Analyzed
NVD · CVE.org

Out-of-bounds write in Windows Schannel allows an unauthorized attacker to execute code over a network.

Fix

Microsoft's update · Important

  • KB5127646 — Windows 11 Version 26H1, Windows 11 version 26H1 · build 10.0.28000.3231 · restart required

From the 2026-Oct release note of Microsoft's Security Update Guide, revised 2026-10-28 · Exploitation Less Likely.

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 4

  1. Cpes+2 CPE criteria (now 2)NVD modified 2026-10-26 14:53
  2. StatusPublished → AnalyzedNVD modified 2026-10-26 14:53
  3. StatusAwaiting Analysis → PublishedNVD modified 2026-10-19 19:42
  4. First seenCVSS 8.1NVD modified 2026-10-13 22:17

Affected (CPE criteria) 2

  • cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*
  • cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*

References 1