CVE-2026-48565: Windows Narrator Braille Elevation of Privilege Vulnerability

Overview

Severity
High (CVSS 7.8)
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Category
Elevation of Privilege
Exploit Status
Not Exploited
Exploitation Likelihood
Less Likely
Patch Tuesday
2026-Jun
Released
2026-06-09

Description

Untrusted search path in Windows Narrator Braille allows an authorized attacker to elevate privileges locally.

FAQ

What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability could gain SYSTEM privileges. How do I protect myself from this vulnerablity? Microsoft recommends installing the latest BRLTTY feature update to help protect systems from this vulnerability. Customers can download and install BRLTTY through Windows Accessibility settings by navigating to: Settings → Accessibility → Narrator → Use Braille display → Download BRLTTY Once installed, ensure the latest available update is applied to receive the security fix and associated protections.

Affected Products (1)

Windows

  • Windows Narrator Braille

Acknowledgments

Zeeshan Shaikh (@bugzzzhunter) working with <a href="https://www.zerodayinitiative.com/">TrendAI Zero Day Initiative</a>

Revision History

  • 2026-06-09: Information published.