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High severity7.8NVD Advisory· Published Apr 14, 2026· Updated Apr 23, 2026

CVE-2026-26179

CVE-2026-26179

Description

Double free in Windows Kernel allows an authorized attacker to elevate privileges locally.

Affected products

11
  • Microsoft/Windows 11 23h22 versions
    cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:*+ 1 more
    • cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:*range: <10.0.22631.6936
    • cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:*range: <10.0.22631.6936
  • Microsoft/Windows 11 24h22 versions
    cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*+ 1 more
    • cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*range: <10.0.26100.8246
    • cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:*range: <10.0.26100.8246
  • Microsoft/Windows 11 25h22 versions
    cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:*+ 1 more
    • cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:*range: <10.0.26200.8246
    • cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:*range: <10.0.26200.8246
  • Microsoft/Windows 11 26h12 versions
    cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*+ 1 more
    • cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*range: <10.0.28000.1836
    • cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*range: <10.0.28000.1836
  • Microsoft/Windows Server 2012
    cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*
    Range: <10.0.25398.2274
  • Microsoft/Windows Server 2025
    cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*
    Range: <10.0.26100.32690
  • Microsoft/Windows Kernelllm-fuzzy

Patches

Vulnerability mechanics

References

1

News mentions

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