CVE-2026-50293: Windows Internal Task Bar Elevation of Privilege Vulnerability
This Microsoft advisory covers CVE-2026-50293 in Windows Server 2025.
- CVE-2026-50293
Key facts
- Vendor rating
- High, CVSS 7.8
- CISA KEV
- Not listed (catalogue checked )
- Affected
- Windows 10 Version 21H2 10.0.19044.0; Windows 10 Version 22H2 10.0.19045.0; Windows 11 Version 24H2 10.0.26100.0 and 4 more below
- Fixed in
- KB5099539 (build 10.0.19045.7548), KB5099536 (build 10.0.26100.33158), KB5101650 (build 10.0.26100.8875) and 1 more below
- Source published
- Listed by VulniPulse
Compiled by VulniPulse from the linked sources. How records are collected and checked.
Affected products & platforms
Description
Windows Internal Task Bar Elevation of Privilege Vulnerability
Affected product named by the advisory: Windows Server 2025.
Text from the source record.
- Windows 10 Version 21H2 10.0.19044.0
- Windows 10 Version 22H2 10.0.19045.0
- Windows 11 Version 24H2 10.0.26100.0
- Windows 11 Version 25H2 10.0.26200.0
- Windows 11 version 26H1 10.0.28000.0
- Windows Server 2025 10.0.26100.0
- Windows Server 2025 (Server Core installation) 10.0.26100.0
Official advisory · high-confidence parse· fetched ·verify at source
How to fix CVE-2026-50293
Upgrade to a fixed release named by Microsoft:
- KB5099539 (build 10.0.19045.7548)
- KB5099536 (build 10.0.26100.33158)
- KB5101650 (build 10.0.26100.8875)
- KB5101649 (build 10.0.28000.2525)
Vendor guidance
- Install the applicable security update for your platform: KB5099539, KB5099536, KB5101650, KB5101649 (see the Microsoft Update Catalog).
End-of-life dates for Windows Server
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