---
id: CVE-2026-50454
title: >-
  Relative path traversal in Windows User Interface Core allows an authorized
  attacker to elevate privileges locally.
summary: >-
  Relative path traversal in Windows User Interface Core allows an authorized
  attacker to elevate privileges locally.
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-23
published: '2026-07-14'
updated: '2026-07-17'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-50454'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50454'
    label: secure@microsoft.com
tags:
  - nvd
  - cve.org
epss: 0.0037
epssPercentile: 0.28254
ingestedAt: '2026-07-17T20:15:43.205Z'
vendor: Microsoft
product: Windows 11 Version 24H2
affected:
  - windows_11_version_24h2 >= 10.0.26100.0 < 10.0.26100.8875
  - windows_11_version_25h2 >= 10.0.26200.0 < 10.0.26200.8875
  - windows_11_version_26h1 >= 10.0.28000.0 < 10.0.28000.2525
  - windows_server_2025 >= 10.0.26100.0 < 10.0.26100.33158
  - >-
    windows_server_2025_server_core_installation >= 10.0.26100.0 <
    10.0.26100.33158
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-07-17T03:56:31.742714Z'
---

## Overview

Relative path traversal in Windows User Interface Core allows an authorized attacker to elevate privileges locally.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.