1. Home
  2. CVE Database
  3. CVE-2026-47652
HIGH · 8.2

CVE-2026-47652

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

Vulnerability Description

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

CVSS Score

8.2

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
MicrosoftWindows 11 23H2< 10.0.22631.7219
MicrosoftWindows 11 24H2< 10.0.26100.8655
MicrosoftWindows 11 25H2< 10.0.26200.8655
MicrosoftWindows 11 26H1< 10.0.28000.2269
MicrosoftWindows Server 2022< 10.0.20348.5256
MicrosoftWindows Server 2025< 10.0.26100.32995

Related Weaknesses (CWE)

CWE-122

References

FAQ

What is CVE-2026-47652?

CVE-2026-47652 is a vulnerability with a CVSS score of 8.2 (HIGH). Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally.

How severe is CVE-2026-47652?

CVE-2026-47652 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-47652?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 11 23H2, Microsoft Windows 11 24H2, Microsoft Windows 11 25H2, Microsoft Windows 11 26H1, Microsoft Windows Server 2022.