VYPR
← All advisories
High severity8.1NVD Advisory· Published May 12, 2026· Updated Jun 17, 2026

CVE-2026-40415

CVE-2026-40415

Description

Use after free in Windows TCP/IP allows an unauthorized attacker to execute code over a network.

Affected products

21
  • Microsoft/Windows 10 18092 versions
    cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*+ 1 more
    • cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*range: <10.0.17763.8755
    • cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*range: <10.0.17763.8755
  • Microsoft/Windows 10 16076 versions
    cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:*+ 5 more
    • cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:*range: <10.0.19044.7291
    • cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*range: <10.0.19044.7291
    • cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:*range: <10.0.19044.7291
    • cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:*range: <10.0.19045.7291
    • cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:*range: <10.0.19045.7291
    • cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:*range: <10.0.19045.7291
  • 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: <10.0.22631.7079
    • cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:*range: <10.0.22631.7079
  • 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: <10.0.26100.8390
    • cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:*range: <10.0.26100.8390
  • 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: <10.0.26200.8390
    • cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:*range: <10.0.26200.8390
  • 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: <10.0.28000.2113
    • cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*range: <10.0.28000.2113
  • Microsoft/Windows Server 2019
    cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
    Range: <10.0.17763.8755
  • Microsoft/Windows Server 2003
    cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
    Range: <10.0.20348.5074
  • Microsoft/Windows Server 2012
    cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*
    Range: <10.0.25398.2330
  • Microsoft/Windows Server 2025
    cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*
    Range: <10.0.26100.32772
  • Microsoft/Windows TCP/IPllm-fuzzy

Patches

Vulnerability mechanics

References

1

News mentions

3