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CVE-2026-68820

7.0 high KEV · due 2026-08-25 exploit ×4 SSVC exploitation: active Analyzed
NVD · CVE.org · CISA KEV

Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

Fix

Public exploits 4

Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.

CISA KEV required action · due 2026-08-25

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Added to the catalog 2026-08-11. CISA KEV

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 6

  1. References+1 references (now 2)NVD modified 2026-10-26 13:10
  2. Cpes+16 CPE criteria (now 16)NVD modified 2026-10-26 13:10
  3. StatusPublished → AnalyzedNVD modified 2026-10-26 13:10
  4. CVSS7.0 (v3.1, CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C) → 7.0 (v3.1, CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)NVD modified 2026-10-26 13:10
  5. CISA KEVadded to CISA KEV, due 2026-08-25
  6. First seenCVSS 7.0 · microsoftNVD modified 2026-10-21 20:52

Affected (CPE criteria) 16

  • cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*
  • cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*
  • cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*

References 2