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CVE-2026-70167

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

Access of resource using incompatible type ('type confusion') in DNS Server allows an authorized attacker to execute code over a network.

Fix

Microsoft's update · Important

  • KB5126655 — Windows Server 2022, Windows Server 2022 (Server Core installation) · build 10.0.20348.5761 · restart required
  • KB5126646 — Windows Server 2025 (Server Core installation), Windows Server 2025 · build 10.0.26100.33650 · 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 3

  1. Cpes+2 CPE criteria (now 2)NVD modified 2026-10-16 10:45
  2. StatusUndergoing Analysis → AnalyzedNVD modified 2026-10-16 10:45
  3. First seenCVSS 8.8NVD modified 2026-10-13 21:18

Affected (CPE criteria) 2

  • cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:*

References 1