CVE-2026-42904Critical· 9.6▾ MidnightHeap-based buffer overflow in Windows TCP/IP allows an unauthorized attacker to elevate privileges over an adjacent network.
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 52.8 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.4%
Heap-based buffer overflow in Windows TCP/IP allows an unauthorized attacker to elevate privileges over an adjacent network.
windows_10_version_21h2 >= 10.0.19044.0 < 10.0.19044.7417windows_10_version_22h2 >= 10.0.19045.0 < 10.0.19045.7417windows_11_version_23h2 >= 10.0.22631.0 < 10.0.22631.7219windows_11_version_23h2 >= 10.0.22631.0 < 10.0.22631.7219windows_11_version_24h2 >= 10.0.26100.0 < 10.0.26100.8655windows_11_version_25h2 >= 10.0.26200.0 < 10.0.26200.8655windows_11_version_26h1 >= 10.0.28000.0 < 10.0.28000.2269windows_server_2022 >= 10.0.20348.0 < 10.0.20348.5256windows_server_2025 >= 10.0.26100.0 < 10.0.26100.32995windows_server_2025_server_core_installation >= 10.0.26100.0 < 10.0.26100.32995Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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