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CVE-2026-21248

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CVSS 3.1
7.3 high
EPSS
1%p69
Published
()
Modified
Description

Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally.

Vendors
microsoft
Products
windows 10 1607, windows 10 1809, windows 10 21h2, windows 10 22h2, windows 11 23h2, windows 11 24h2, windows 11 25h2, windows server 2016, windows server 2019, windows server 2022, windows server 2022 23h2, windows server 2025
Weakness
CWE-122, CWE-787
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
NVD CVE.org GitHub PoCs EPSS (1.3%)

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