CVE-2026-83509Vulnerability
Reported by 3 independent sources · first reported by SANS Internet Storm Center · last reported
Last reported 11 days ago
higher than 20% of CVEsFIRST EPSS, as of 23 Oct 2026
What the reports say
3 reports, newest first · the exact sentence from each-
Microsoft Patch Tuesday, October 2026 Security Update Review“CVE-2026-83509 Windows Setup Files Cleanup Elevation of Privilege Vulnerability Untrusted search path in Windows Setup Files Cleanup may allow an authenticated attacker to elevate privileges locally.”
-
Microsoft Patch Tuesday for October 2026 — Snort rules and prominent vulnerabilities“CVE-2026-83509: Windows Setup Files Cleanup Elevation of Privilege Vulnerability”
-
October 2026 Microsoft Patch Tuesday, (Tue, Oct 13th)“CVE-2026-83509”
Indicators reported together
named in the same reports- snort[.]orgin 1 report
Copy this indicator · defanged
Also named with it: CVE-2026-96940, CVE-2026-85849, CVE-2026-96951, CVE-2026-70571, CVE-2026-108131, CVE-2026-96222, CVE-2026-83943, CVE-2026-77900, CVE-2026-83947, CVE-2026-69435, CVE-2026-69880, CVE-2026-69926, CVE-2026-70255, CVE-2026-88093, CVE-2026-108400, CVE-2026-62840, CVE-2026-94510, CVE-2026-88131, CVE-2026-100214
Thanks — we review every report.