CVE-2025-26688

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

Stack-based buffer overflow in Microsoft Virtual Hard Drive allows an authorized attacker to elevate privileges locally.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-121

Affected software

Vendor	Product	Versions
Microsoft	Windows 10 Version 1507	>= 10.0.10240.0, < 10.0.10240.20978
Microsoft	Windows 10 Version 1607	>= 10.0.14393.0, < 10.0.14393.7969
Microsoft	Windows 10 Version 1809	>= 10.0.17763.0, < 10.0.17763.7136
Microsoft	Windows 10 Version 21H2	>= 10.0.19044.0, < 10.0.19044.5737
Microsoft	Windows 10 Version 22H2	>= 10.0.19045.0, < 10.0.19045.5737
Microsoft	Windows 11 version 22H2	>= 10.0.22621.0, < 10.0.22621.5189
Microsoft	Windows 11 version 22H3	>= 10.0.22631.0, < 10.0.22631.5189
Microsoft	Windows 11 Version 23H2	>= 10.0.22631.0, < 10.0.22631.5189
Microsoft	Windows 11 Version 24H2	>= 10.0.26100.0, < 10.0.26100.3775
Microsoft	Windows Server 2012	>= 6.2.9200.0, < 6.2.9200.25423
Microsoft	Windows Server 2012 (Server Core installation)	>= 6.2.9200.0, < 6.2.9200.25423
Microsoft	Windows Server 2012 R2	>= 6.3.9600.0, < 6.3.9600.22523
Microsoft	Windows Server 2012 R2 (Server Core installation)	>= 6.3.9600.0, < 6.3.9600.22523
Microsoft	Windows Server 2016	>= 10.0.14393.0, < 10.0.14393.7969
Microsoft	Windows Server 2016 (Server Core installation)	>= 10.0.14393.0, < 10.0.14393.7969
Microsoft	Windows Server 2019	>= 10.0.17763.0, < 10.0.17763.7136
Microsoft	Windows Server 2019 (Server Core installation)	>= 10.0.17763.0, < 10.0.17763.7136
Microsoft	Windows Server 2022	>= 10.0.20348.0, < 10.0.20348.3453
Microsoft	Windows Server 2022, 23H2 Edition (Server Core installation)	>= 10.0.25398.0, < 10.0.25398.1551
Microsoft	Windows Server 2025	>= 10.0.26100.0, < 10.0.26100.3775
Microsoft	Windows Server 2025 (Server Core installation)	>= 10.0.26100.0, < 10.0.26100.3775

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-26688Vendor Advisory

Timeline

Published: Apr 8, 2025
Last modified: Jun 17, 2026
NVD status: Analyzed

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