CVE-2026-45586

Windows Collaborative Translation Framework (CTFMON) Elevation of Privilege Vulnerability

CVE-2026-45586 is fixed in 30 products on 1 platform, first by KB5094122, released June 9, 2026. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.

UrgentPublicly disclosed

CVSS

7.8

Important

Exploitation

More likely

Vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0363

89th percentile

<p>Improper link resolution before file access ('link following') in Windows Collaborative Translation Framework allows an authorized attacker to elevate privileges locally.</p>

Where it's fixed

Product	Fixed in	Fix	Released
Microsoft
Windows 10 Version 1607 for 32-bit Systems	14393.9234	KB5094122	Jun 9, 2026
Windows 10 Version 1607 for x64-based Systems	14393.9234	KB5094122	Jun 9, 2026
Windows 10 Version 1809 for 32-bit Systems	17763.8880	KB5094123	Jun 9, 2026
Windows 10 Version 1809 for x64-based Systems	17763.8880	KB5094123	Jun 9, 2026
Windows 10 Version 21H2 for 32-bit Systems		KB5094127	Jun 9, 2026
Windows 10 Version 21H2 for ARM64-based Systems		KB5094127	Jun 9, 2026
Windows 10 Version 21H2 for x64-based Systems		KB5094127	Jun 9, 2026
Windows 10 Version 22H2 for 32-bit Systems		KB5094127	Jun 9, 2026
Windows 10 Version 22H2 for ARM64-based Systems		KB5094127	Jun 9, 2026
Windows 10 Version 22H2 for x64-based Systems		KB5094127	Jun 9, 2026
Windows 11 Version 23H2 for ARM64-based Systems	22631.7219	KB5093998	Jun 9, 2026
Windows 11 Version 23H2 for x64-based Systems	22631.7219	KB5093998	Jun 9, 2026
Windows 11 Version 24H2 for ARM64-based Systems		KB5094126	Jun 9, 2026
Windows 11 Version 24H2 for x64-based Systems		KB5094126	Jun 9, 2026
Windows 11 Version 25H2 for ARM64-based Systems		KB5094126	Jun 9, 2026
Windows 11 Version 25H2 for x64-based Systems		KB5094126	Jun 9, 2026
Windows 11 Version 26H1 for ARM64-based Systems	28000.2269	KB5095051	Jun 9, 2026
Windows 11 version 26H1 for x64-based Systems	28000.2269	KB5095051	Jun 9, 2026
Windows Server 2012		KB5094042	Jun 9, 2026
Windows Server 2012 (Server Core installation)		KB5094042	Jun 9, 2026
Windows Server 2012 R2		KB5094041	Jun 9, 2026
Windows Server 2012 R2 (Server Core installation)		KB5094041	Jun 9, 2026
Windows Server 2016	14393.9234	KB5094122	Jun 9, 2026
Windows Server 2016 (Server Core installation)	14393.9234	KB5094122	Jun 9, 2026
Windows Server 2019	17763.8880	KB5094123	Jun 9, 2026
Windows Server 2019 (Server Core installation)	17763.8880	KB5094123	Jun 9, 2026
Windows Server 2022	20348.5256	KB5094128	Jun 9, 2026
Windows Server 2022 (Server Core installation)	20348.5256	KB5094128	Jun 9, 2026
Windows Server 2025	26100.32995	KB5094125	Jun 9, 2026
Windows Server 2025 (Server Core installation)	26100.32995	KB5094125	Jun 9, 2026

Details

Published
June 9, 2026
Weakness
Improper Link Resolution Before File Access ('Link Following')
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45586

For tools and AI agents

This page as data: JSON · Markdown

Link to this page

If this page saved you time, a link to it in your ticket, advisory or write-up helps others find it.

HTML

<a href="https://patchblox.com/security/cve/CVE-2026-45586">CVE-2026-45586 on Patchblox Patch Radar</a>

Reusing the data? How to credit Patch Radar.

Is this on your machines?

Patchblox finds every install below the fixed version on Windows, macOS and Linux, and updates them through your release rings.

Get a demo

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.