CVE-2026-69289: Windows Setup Files Cleanup Elevation of Privilege Vulnerability

Details

Source

Microsoft Security Response Center (INTL · vendor-psirt · site)

Severity

high — CVSS 7.8

Published

2026-09-08

Exploitation

Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69289

Referenced CVEs

Same CVEs, other sources

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

• critical[NEU] [kritisch] Microsoft Windows: Mehrere Schwachstellencert-bund
• highCVE-2026-69289: Improper link resolution before file access ('link following') in Windows Setup Files Cleanup …nvd

Recent advisories for Windows Setup Files

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.

• highCVE-2026-69289: Improper link resolution before file access ('link following') in Windows Setup Files Cleanup …nvd · 2026-09-08

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