CVE-2026-50454: Relative path traversal in Windows User Interface Core allows an authorized attacker to elevate privileges locally.

highCVSS 7.8CVE-2026-50454

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

Details

Source: NVD Recent CVEs (US · database · site)
Severity: high — CVSS 7.8
Published: 2026-07-14
Last updated: 2026-07-17
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-50454

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-504540.44% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 36% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-50454	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

unknownexploitedNCSC-2026-0231 [1.00] [M/H] Vulnerabilities fixed in Microsoft Windowsncsc-nl
highCVE-2026-50454: Windows User Interface Core Elevation of Privilege Vulnerabilitymsrc

Recent advisories for Relative path traversal

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

unknownCVE-2026-66755: Relative Path Traversal in the ISA-Tab parser in Apache Software Foundation Apache Tika from 1…nvd · 2026-07-30
mediumCVE-2026-18192: VIN-DS783E-E6 developed by Vacron has an Arbitrary File Read vulnerability, allowing authentic…nvd · 2026-07-29
unknownCVE-2026-47078: Relative Path Traversal vulnerability in Erlang OTP (stdlib zip module) allows writing files o…nvd · 2026-07-27
mediumGHSA-49h3-cwhj-4737: Cloudreve: Path Traversal in WOPI PUT_RELATIVE Allows Arbitrary File Creation in Owner Ac…ghsa · 2026-07-24
criticalCVE-2026-12701: A path traversal vulnerability was found in pulpcore. The relative_path_validator function onl…nvd · 2026-07-20
highCVE-2026-56196: Relative path traversal in Windows Admin Center allows an authorized attacker to execute code …nvd · 2026-07-14