Buffer overflow in Microsoft Windows_10_1607
CVE-2026-40380
Heap-based buffer overflow in Volume Manager Extension Driver allows an authorized attacker to execute code with a physical attack.
Vulnerability class: Buffer Overflow
EPSS: 0.001 (26.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Microsoft Windows_10_1607
- Microsoft Windows_10_1809
- Microsoft Windows_10_21h2
- Microsoft Windows_10_22h2
- Microsoft Windows 10 Version 1607 — versions 10.0.14393.0
- Microsoft Windows 10 Version 1809 — versions 10.0.17763.0
- Microsoft Windows 10 Version 21h2 — versions 10.0.19044.0
- Microsoft Windows 10 Version 22h2 — versions 10.0.19045.0
- Microsoft Windows_11_23h2
- Microsoft Windows_11_24h2
Weakness classification (CWE)
References
- Windows Volume Manager Extension Driver Remote Code Execution Vulnerability (vendor-advisory, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-40380?
- CVE-2026-40380 is a medium-severity vulnerability in Microsoft Windows_10_1607, classified under Heap-based Buffer Overflow. CVSS score: 6.2/10. Published 2026-05-12.
- How severe is CVE-2026-40380?
- Medium severity. CVSS v3 base score is 6.2 out of 10.