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Description

Improper input validation in Windows Hyper-V allows an authorized attacker to execute code locally.

PUBLISHED Reserved 2026-03-10 | Published 2026-04-14 | Updated 2026-06-01 | Assigner microsoft




HIGH: 7.3CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Problem types

CWE-20: Improper Input Validation

CWE-191: Integer Underflow (Wrap or Wraparound)

CWE-122: Heap-based Buffer Overflow

Product status

10.0.14393.0 (custom) before 10.0.14393.9060
affected

10.0.17763.0 (custom) before 10.0.17763.8644
affected

10.0.19044.0 (custom) before 10.0.19044.7184
affected

10.0.19045.0 (custom) before 10.0.19045.7184
affected

10.0.22631.0 (custom) before 10.0.22631.6936
affected

10.0.22631.0 (custom) before 10.0.22631.6936
affected

10.0.26100.0 (custom) before 10.0.26100.8246
affected

10.0.26200.0 (custom) before 10.0.26200.8246
affected

10.0.28000.0 (custom) before 10.0.28000.1836
affected

10.0.14393.0 (custom) before 10.0.14393.9060
affected

10.0.14393.0 (custom) before 10.0.14393.9060
affected

10.0.17763.0 (custom) before 10.0.17763.8644
affected

10.0.17763.0 (custom) before 10.0.17763.8644
affected

10.0.20348.0 (custom) before 10.0.20348.5020
affected

10.0.25398.0 (custom) before 10.0.25398.2274
affected

10.0.26100.0 (custom) before 10.0.26100.32690
affected

10.0.26100.0 (custom) before 10.0.26100.32690
affected

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32149 (Windows Hyper-V Remote Code Execution Vulnerability) vendor-advisory patch

cve.org (CVE-2026-32149)

nvd.nist.gov (CVE-2026-32149)

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