CVE-2026-49804: Windows USB Video Driver Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows USB Video Driver allows an unauthorized attacker to elevate privileges with a physical attack.

CSIRTS triage

What: Heap-based buffer overflow in Windows USB Video Driver allows an unauthorized attacker to elevate privileges with a physical attack.
Who is affected: Unauthorized attackers with physical access to affected Windows systems.
Urgency: Remediation is important due to medium severity and potential for privilege escalation with physical access.
Action: Apply the latest security patch for Windows.

AI-assisted analysis generated from the source advisory — verify against the original.

⚡ Watch Windows

Get an email when a new Windows advisory drops — max one per day, one-click unsubscribe.

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-2026-498040.36% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 29% of all scored CVEs.

CVE	CSIRTS overview	External
CVE-2026-49804	coverage & exploitation status	NVD · CVE.org

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