PT-2026-112773 · Microsoft · Windows+15

CVE-2026-85806

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Published

2026-10-13

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Updated

2026-10-13

CVSS v3.1

9.8

Critical

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Network Policy Server (affected versions not specified)
Description An integer underflow (wrap or wraparound) occurs in the Network Policy Server (NPS), which allows an unauthorized attacker to execute arbitrary code over a network and affect the system. Integer underflow is a condition where a subtraction operation results in a value smaller than the minimum representable value for the data type, causing it to wrap around to a very large positive number.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Stack Overflow

Integer Underflow

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Weakness Enumeration

Related Identifiers

CVE-2026-85806

Affected Products

Windows
Windows 10 Version 1607
Windows 10 Version 1809
Windows 10 Version 21H2
Windows 10 Version 22H2
Windows 11 Version 23H2
Windows 11 Version 24H2
Windows 11 Version 25H2
Windows 11 Version 26H2
Windows 11 Version 26H1
Windows Server 2012
Windows Server 2012 R2
Windows Server 2016
Windows Server 2019
Windows Server 2022
Windows Server 2025