CVE-2026-69490

Out-of-bounds read in Windows USB Mass Storage Class Driver allows an unauthorized attacker to elevate privileges with a physical attack.

  • Published Sep 8, 2026
  • CVSS 6.8 medium
  • 0.4% chance of exploitation in the next 30 days (EPSS)
  • A fix is available

Affected software

CVE-2026-69490 at the National Vulnerability Database