CVE-2026-69490: Windows USB Mass Storage Class Driver Elevation of Privilege Vulnerability
Out-of-bounds read in Windows USB Mass Storage Class Driver allows an unauthorized attacker to elevate privileges with a physical attack.
Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69490
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-69490 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
Recent advisories for Windows USB Mass
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.
- mediumCVE-2026-69527: Out-of-bounds read in Windows USB Mass Storage Class Driver allows an authorized attacker to d…nvd · 2026-09-08
- mediumCVE-2026-69490: Out-of-bounds read in Windows USB Mass Storage Class Driver allows an unauthorized attacker to…nvd · 2026-09-08
- criticalCVE-2026-68839: Heap-based buffer overflow in Windows USB Mass Storage Class Driver allows an unauthorized att…nvd · 2026-09-08
- mediumCVE-2026-69527: Windows USB Mass Storage Class Driver Information Disclosure Vulnerabilitymsrc · 2026-09-08
- criticalCVE-2026-68839: Windows USB Mass Storage Class Driver Remote Code Execution Vulnerabilitymsrc · 2026-09-08
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