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CVE-2026-85921 (GCVE-0-2026-85921)

Vulnerability from cvelistv5 – Published: 2026-09-14 17:19 – Updated: 2026-09-15 22:39
VLAI
Title
Windows Secure Kernel Mode Elevation of Privilege Vulnerability
Summary
Double free in Windows Secure Kernel Mode allows an authorized attacker to elevate privileges locally.
Severity
8.2 (High)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 00:00 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Microsoft Windows 11 version 26H1 Affected: 10.0.28000.0 , < 10.0.28000.2956 (custom)
    cpe:2.3:o:microsoft:windows_11_26H1:*:*:*:*:*:*:x64:*
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Date Public
2026-09-14 14:00
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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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