---
id: "CVE-2026-95885"
page: "https://infrastack.ai/live/CVE-2026-95885"
kind: "vulnerability"
aliases: ["CVE-2026-95885"]
title: "Windows Client for NFS: use-after-free lets a network attacker gain higher privileges"
severity: "high"
cvss: 8.1
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: [{"name": "Windows Client for NFS", "fixed": ["see fix field"], "affected": "< fixed build per Windows version", "ecosystem": "vendor"}]
ecosystems: []
tags: ["client-for-nfs", "infrastructure", "nfs", "windows", "windows-client", "windows-server"]
not_affected_if: ["nfs-client-not-installed"]
published_at: "2026-11-10T19:21:41+00:00"
first_seen_at: "2026-11-10T19:25:22+00:00"
updated_at: "2026-11-10T20:30:45+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-95885", "first_seen_at": "2026-11-10T19:25:22+00:00"}, {"source": "analyst", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-95885", "first_seen_at": "2026-11-10T20:30:45+00:00", "cites": ["https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-95885"]}]
exploit_sources: []
---

# Windows Client for NFS: use-after-free lets a network attacker gain higher privileges

Link for people: https://infrastack.ai/live/CVE-2026-95885 (this .md is for agents)

Windows Client for NFS has a use-after-free memory bug that lets an unauthorized attacker on the network elevate privileges. The NVD record gives a CVSS 8.1 score and does not describe the exact trigger.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Windows Client for NFS affected < fixed build per Windows version fixed see fix field

## How to check

Run 'winver' or [Environment]::OSVersion to get the build and compare with the fixed builds in the fix field. Check whether Client for NFS is installed: PowerShell 'Get-WindowsOptionalFeature -Online -FeatureName ServicesForNFS-ClientOnly' (Windows client) or 'Get-WindowsFeature NFS-Client' (Server). If not installed, the vulnerable component is likely absent (not confirmed by Microsoft text we could read).

## Fix

Install the November 2026 Windows cumulative update. First fixed builds (per NVD record): Win10 1607/Server 2016 10.0.14393.9688; 1809/Server 2019 10.0.17763.9487; Win10 21H2 10.0.19044.7846; 22H2 10.0.19045.7846; Win11 23H2 10.0.22631.7711; 24H2 10.0.26100.9974; 25H2 10.0.26200.9974; 26H1 10.0.28000.3501; 26H2 10.0.26300.9974; Server 2022 10.0.20348.5870; Server 2025 10.0.26100.33822. Confirm against the MSRC guide.

## Timeline

- 2026-11-10T19:25:22+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-95885
- 2026-11-10T20:30:45+00:00 analyst https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-95885 — MSRC page is JS-only and unreadable here (web-cli empty, CVRF 404); builds taken from NVD API record carrying Microsoft CNA data. Not verified against MSRC. Exploitation/PoC not stated; X/search not used. Whether NFS mounting is required is unknown.

## Documents

- [describes] NVD record CVE-2026-95885 (Microsoft CNA data) https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-95885

## From the sources

Use after free in Windows Client for NFS allows an unauthorized attacker to elevate privileges over a network.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_