Description
Heap-based buffer overflow in Windows USB Video Driver allows an unauthorized attacker to elevate privileges with a physical attack.
Published: 2026-07-14
Score: 6.6 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The vulnerability is a heap‑based buffer overflow (CWE-122) that occurs within the Windows USB Video Driver. When a malicious USB video device is connected, the driver incorrectly handles data, writing beyond the bounds of a heap buffer and allowing an unauthorized attacker to elevate privileges on the affected system.

Affected Systems

Affected by Microsoft are Windows 10 versions 1607, 1809, 21H2, and 22H2; Windows 11 versions 24H2 and 25H2; and Windows Server 2012, 2012 R2, 2016, 2019, 2022, and 2025, including all Server Core installations. The vulnerability impacts 32‑bit, 64‑bit and ARM64 variants as identified in the CPE data.

Risk and Exploitability

The CVSS score of 6.6 indicates a moderate impact, and the EPSS score of less than 1 % signifies a very low estimated exploitation probability. The vulnerability is not listed in the CISA KEV catalog. Exploitation requires a physical attacker to connect a malicious USB video device; it is not a remote network threat.

Generated by OpenCVE AI on July 31, 2026 at 08:51 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the Microsoft security update for CVE‑2026‑49804 as soon as it is released.
  • Disable or uninstall the Windows USB Video Driver if it is not required for system operation.
  • Implement device control policies or use USB port blockers to restrict or prevent USB video devices from being connected.

Generated by OpenCVE AI on July 31, 2026 at 08:51 UTC.

Tracking

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Advisories

No advisories yet.

History

Thu, 16 Jul 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 14 Jul 2026 17:15:00 +0000

Type Values Removed Values Added
Description Heap-based buffer overflow in Windows USB Video Driver allows an unauthorized attacker to elevate privileges with a physical attack.
Title Windows USB Video Driver Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft windows 10 1607
Microsoft windows 10 1809
Microsoft windows 10 21h2
Microsoft windows 10 22h2
Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows Server 2012
Microsoft windows Server 2012 R2
Microsoft windows Server 2016
Microsoft windows Server 2019
Microsoft windows Server 2022
Microsoft windows Server 2025
Weaknesses CWE-122
CPEs cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10_21H2:*:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10_22H2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11_24H2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_25H2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft windows 10 1607
Microsoft windows 10 1809
Microsoft windows 10 21h2
Microsoft windows 10 22h2
Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows Server 2012
Microsoft windows Server 2012 R2
Microsoft windows Server 2016
Microsoft windows Server 2019
Microsoft windows Server 2022
Microsoft windows Server 2025
References
Metrics cvssV3_1

{'score': 6.6, 'vector': 'CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}


Subscriptions

Microsoft Windows 10 1607 Windows 10 1809 Windows 10 21h2 Windows 10 22h2 Windows 11 24h2 Windows 11 25h2 Windows Server 2012 Windows Server 2012 R2 Windows Server 2016 Windows Server 2019 Windows Server 2022 Windows Server 2025
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-08-03T22:54:24.362Z

Reserved: 2026-06-01T17:02:37.208Z

Link: CVE-2026-49804

cve-icon Vulnrichment

Updated: 2026-07-16T15:08:12.334Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-31T09:00:07Z

Weaknesses
  • CWE-122

    Heap-based Buffer Overflow