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CVE-2026-49804 Microsoft CVE debrief

A heap-based buffer overflow vulnerability exists in the Windows USB Video Driver. An unauthorized attacker could exploit this vulnerability with a physical attack to elevate privileges. The vulnerability has a CVSS score of 6.6 and a severity of MEDIUM. This type of vulnerability typically allows attackers to execute arbitrary code with elevated privileges, potentially leading to system compromise. System administrators should review the CVE record and NVD entry for further details.

Vendor
Microsoft
Product
Windows 10 Version 1607
CVSS
MEDIUM 6.6
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-14
Original CVE updated
2026-07-16
Advisory published
2026-07-14
Advisory updated
2026-07-16

Who should care

System administrators and users of Windows operating systems should be aware of this vulnerability and take necessary precautions to mitigate the risk. This includes reviewing system logs for suspicious activity, applying patches promptly, and limiting physical access to sensitive systems. IT teams responsible for vulnerability management and incident response should prioritize this vulnerability for remediation.

Technical summary

The vulnerability is caused by a heap-based buffer overflow in the Windows USB Video Driver. This allows an attacker to execute arbitrary code with elevated privileges when a specially crafted request is made. The vulnerability requires physical access to the system to exploit, limiting its impact to local attacks. However, the potential for privilege escalation makes it a significant concern for system administrators.

Defensive priority

High

Recommended defensive actions

  • Apply the patch provided by Microsoft
  • Ensure that all Windows operating systems are up-to-date
  • Limit physical access to sensitive systems
  • Monitor system logs for suspicious activity
  • Review compensating controls for exposed systems while remediation is scheduled and verified

Evidence notes

The CVE record was published on 2026-07-14T17:16:56.813Z and was last modified on 2026-07-16T16:19:10.527Z. The NVD entry is currently Analyzed. The vulnerability has been confirmed in the Windows USB Video Driver. Evidence of exploitation has not been reported. Defenders should verify system logs for suspicious activity related to USB Video Driver usage.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-14T17:16:56.813Z and has not been modified since then. The NVD entry is currently Analyzed.