---
id: "CVE-2026-119962"
page: "https://infrastack.ai/live/CVE-2026-119962"
kind: "vulnerability"
aliases: ["CVE-2026-119962"]
title: "Windows: double free in Cred SSProvider lets network attackers run code"
severity: "high"
cvss: 8.1
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: [{"name": "Windows 10 22H2", "fixed": ["10.0.19045.7846"], "affected": "< 10.0.19045.7846", "ecosystem": "microsoft"}, {"name": "Windows 10 21H2", "fixed": ["10.0.19044.7846"], "affected": "< 10.0.19044.7846", "ecosystem": "microsoft"}, {"name": "Windows 10 1809", "fixed": ["10.0.17763.9487"], "affected": "< 10.0.17763.9487", "ecosystem": "microsoft"}, {"name": "Windows 10 1607", "fixed": ["10.0.14393.9688"], "affected": "< 10.0.14393.9688", "ecosystem": "microsoft"}, {"name": "Windows 11 23H2", "fixed": ["10.0.22631.7711"], "affected": "< 10.0.22631.7711", "ecosystem": "microsoft"}, {"name": "Windows 11 24H2", "fixed": ["10.0.26100.9974"], "affected": "< 10.0.26100.9974", "ecosystem": "microsoft"}, {"name": "Windows 11 25H2", "fixed": ["10.0.26200.9974"], "affected": "< 10.0.26200.9974", "ecosystem": "microsoft"}, {"name": "Windows 11 26H1", "fixed": ["10.0.28000.3501"], "affected": "< 10.0.28000.3501", "ecosystem": "microsoft"}, {"name": "Windows 11 26H2", "fixed": ["10.0.26300.9974"], "affected": "< 10.0.26300.9974", "ecosystem": "microsoft"}, {"name": "Windows Server 2016", "fixed": ["10.0.14393.9688"], "affected": "< 10.0.14393.9688", "ecosystem": "microsoft"}, {"name": "Windows Server 2019", "fixed": ["10.0.17763.9487"], "affected": "< 10.0.17763.9487", "ecosystem": "microsoft"}, {"name": "Windows Server 2022", "fixed": ["10.0.20348.5870"], "affected": "< 10.0.20348.5870", "ecosystem": "microsoft"}, {"name": "Windows Server 2025", "fixed": ["10.0.26100.33822"], "affected": "< 10.0.26100.33822", "ecosystem": "microsoft"}]
ecosystems: []
tags: ["credssp", "infrastructure", "network", "windows", "windows-server"]
not_affected_if: ["patched"]
published_at: "2026-11-10T19:20:20+00:00"
first_seen_at: "2026-11-10T19:25:05+00:00"
updated_at: "2026-11-10T22:13:15+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-119962", "first_seen_at": "2026-11-10T19:25:05+00:00"}, {"source": "analyst", "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-119962", "first_seen_at": "2026-11-10T22:13:15+00:00", "cites": ["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-119962", "https://app.opencve.io/cve/CVE-2026-119962"]}]
exploit_sources: []
---

# Windows: double free in Cred SSProvider lets network attackers run code

Link for people: https://infrastack.ai/live/CVE-2026-119962 (this .md is for agents)

A double free bug in the Windows Cred SSProvider protocol handling lets an unauthenticated attacker send network traffic that runs code on the affected machine. The source reports a CVSS score of 8.1.

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

## Affected

- microsoft:Windows 10 22H2 affected < 10.0.19045.7846 fixed 10.0.19045.7846
- microsoft:Windows 10 21H2 affected < 10.0.19044.7846 fixed 10.0.19044.7846
- microsoft:Windows 10 1809 affected < 10.0.17763.9487 fixed 10.0.17763.9487
- microsoft:Windows 10 1607 affected < 10.0.14393.9688 fixed 10.0.14393.9688
- microsoft:Windows 11 23H2 affected < 10.0.22631.7711 fixed 10.0.22631.7711
- microsoft:Windows 11 24H2 affected < 10.0.26100.9974 fixed 10.0.26100.9974
- microsoft:Windows 11 25H2 affected < 10.0.26200.9974 fixed 10.0.26200.9974
- microsoft:Windows 11 26H1 affected < 10.0.28000.3501 fixed 10.0.28000.3501
- microsoft:Windows 11 26H2 affected < 10.0.26300.9974 fixed 10.0.26300.9974
- microsoft:Windows Server 2016 affected < 10.0.14393.9688 fixed 10.0.14393.9688
- microsoft:Windows Server 2019 affected < 10.0.17763.9487 fixed 10.0.17763.9487
- microsoft:Windows Server 2022 affected < 10.0.20348.5870 fixed 10.0.20348.5870
- microsoft:Windows Server 2025 affected < 10.0.26100.33822 fixed 10.0.26100.33822

## How to check

Run 'winver' or PowerShell '[System.Environment]::OSVersion.Version' / '(Get-ItemProperty "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion").UBR' and compare the full build (e.g. 10.0.19045.UBR) with the fixed build for your Windows version. Lower means exposed.

## Fix

Install the November 2026 Windows cumulative update that brings the build to at least: 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; Win11 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. KB numbers: unknown, confirm in MSRC.

## Timeline

- 2026-11-10T19:25:05+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-119962
- 2026-11-10T22:13:15+00:00 analyst https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-119962 — MSRC page is JS-only and unreadable; versions come from the Microsoft CNA record as mirrored by OpenCVE (a rewrite), so nothing marked verified. KB numbers not found. No exploitation or PoC found; X/social not searched.

## Documents

- [advisory] MSRC Security Update Guide: CVE-2026-119962 (JS-only, not readable by tools) https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-119962
- [describes] OpenCVE: CVE-2026-119962 (Microsoft CNA record) https://app.opencve.io/cve/CVE-2026-119962

## From the sources

Double free in Windows Cred SSProvider Protocol allows an unauthorized attacker to execute code over a network.

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