Out-of-bounds Read in Microsoft Windows 10 Version 1607
CVE-2026-70063
Out-of-bounds read in Windows Kernel allows an authorized attacker to disclose information locally.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Microsoft Windows 10 Version 1607
- Microsoft Windows 10 Version 1809
- Microsoft Windows 10 Version 21h2
- Microsoft Windows 10 Version 22h2
- Microsoft Windows 11 Version 23h2
- Microsoft Windows 11 Version 24h2
- Microsoft Windows 11 Version 25h2
- Microsoft Windows 11 Version 26h1
- Microsoft Windows 11 Version 26h2
- Microsoft Windows Server 2012
Weakness classification (CWE)
References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70063 (vendor-advisory, patch)
Frequently asked questions
- What is CVE-2026-70063?
- CVE-2026-70063 is a medium-severity vulnerability in Microsoft Windows 10 Version 1607, classified under Out-of-bounds Read. CVSS score: 4.7/10. Published 2026-10-13.
- How severe is CVE-2026-70063?
- Medium severity. CVSS v3 base score is 4.7 out of 10.