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CVE-2026-85916

5.5 medium SSVC exploitation: none Analyzed
NVD · CVE.org

Exposure of private personal information to an unauthorized actor in Azure Active Directory allows an unauthorized attacker to disclose information locally.

Fix

Microsoft's update · Important

  • KB5127648 — Windows 11 Version 26H2 · build 10.0.26300.9711 · restart required
  • KB5126646 — Windows Server 2025 (Server Core installation), Windows Server 2025 · build 10.0.26100.33650 · restart required
  • KB5127648 — Windows 11 Version 25H2 · build 10.0.26200.9711 · restart required
  • KB5126653 — Windows 11 Version 23H2 · build 10.0.22631.7652 · restart required
  • KB5127648 — Windows 11 Version 24H2 · build 10.0.26100.9711 · restart required
  • 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+11 CPE criteria (now 11)NVD modified 2026-10-16 18:01
  2. StatusAwaiting Analysis → AnalyzedNVD modified 2026-10-16 18:01
  3. CVSS6.2 (v3.1, CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) → 5.5 (v3.1, CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)NVD modified 2026-10-16 18:01
  4. First seenCVSS 6.2NVD modified 2026-10-13 21:19

Affected (CPE criteria) 11

  • cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:*
  • cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*
  • cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:*
  • cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*
  • cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_11_26h2:*:*:*:*:*:*:arm64:*
  • cpe:2.3:o:microsoft:windows_11_26h2:*:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:*

References 1