Vulnerability in Microsoft Windows 10 Version 1607
CVE-2026-83787
Insufficient verification of data authenticity in Windows DHCP Server allows an authorized attacker to bypass a security feature locally.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/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 Server 2012
- Microsoft Windows Server 2012 R2
- Microsoft Windows Server 2012 R2 (Server Core Installation)
- Microsoft Windows Server 2012 (Server Core Installation)
- Microsoft Windows Server 2016
- Microsoft Windows Server 2016 (Server Core Installation)
- Microsoft Windows Server 2019
- Microsoft Windows Server 2019 (Server Core Installation)
Weakness classification (CWE)
References
- Windows DHCP Server Security Feature Bypass Vulnerability (vendor-advisory, patch)
Frequently asked questions
- What is CVE-2026-83787?
- CVE-2026-83787 is a medium-severity vulnerability in Microsoft Windows 10 Version 1607, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 5.5/10. Published 2026-10-13.
- How severe is CVE-2026-83787?
- Medium severity. CVSS v3 base score is 5.5 out of 10.