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Vulnerability · Published Oct 13, 2026 · Assigned by microsoft

CVE-2026-85841Windows DHCP Server Remote Code Execution Vulnerability

Medium 6.6

In plain English

A medium-severity use-after-free in Windows 10 Version 1607 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).

Severity (CVSS 3.1)6.6Medium
Exploit odds (30 days)0.6%top 49.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Use after free in Windows DHCP Server allows an authorized attacker to execute code over a network.

Affected products (as reported)

VendorProductVersions
Microsoft Windows 10 Version 1607 10.0.14393.0 – before 10.0.14393.9612
Microsoft Windows 10 Version 1809 10.0.17763.0 – before 10.0.17763.9376
Microsoft Windows Server 2012 6.2.9200.0 – before 6.2.9200.26434
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 – before 6.2.9200.26434
Microsoft Windows Server 2012 R2 6.3.9600.0 – before 6.3.9600.23470
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 – before 6.3.9600.23470
Microsoft Windows Server 2016 10.0.14393.0 – before 10.0.14393.9612
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 – before 10.0.14393.9612
Microsoft Windows Server 2019 10.0.17763.0 – before 10.0.17763.9376
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 – before 10.0.17763.9376
Microsoft Windows Server 2022 10.0.20348.0 – before 10.0.20348.5761
Microsoft Windows Server 2025 10.0.26100.0 – before 10.0.26100.33650
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 – before 10.0.26100.33650

Weakness: CWE-416 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

References