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CVE-2026-49804: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607

0
Medium
VulnerabilityCVE-2026-49804cvecve-2026-49804cwe-122
Published: 07/14/2026 (07/14/2026, 17:06:02 UTC)
Source: CVE Database V5
Vendor/Project: Microsoft
Product: Windows 10 Version 1607

Description

CVE-2026-49804 is a heap-based buffer overflow vulnerability in the Windows USB Video Driver on Windows 10 Version 1607 (build 10.0.14393.0). This flaw allows an unauthorized attacker with physical access to the device to elevate privileges. The vulnerability has a CVSS 3.1 base score of 6.6, indicating a medium severity level. An official fix is available from Microsoft to address this issue.

CVSS v3.1

Score 6.6medium

Attack Vector
Physical
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
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

Affected software

Affected versions
=10.0.14393.0

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 07/15/2026, 01:34:10 UTC

Technical Analysis

This vulnerability involves a heap-based buffer overflow in the Windows USB Video Driver component of Windows 10 Version 1607 (build 10.0.14393.0). Exploitation requires physical access and user interaction, enabling an attacker to elevate privileges on the affected system. The vulnerability is tracked as CWE-122. Microsoft has published an official fix to remediate this issue.

Potential Impact

Successful exploitation of this vulnerability could allow an attacker with physical access to the device to elevate their privileges, potentially gaining higher-level access than intended. The vulnerability affects confidentiality, integrity, and availability, all rated high in impact. However, exploitation requires physical presence and user interaction, which limits remote exploitation possibilities.

Mitigation Recommendations

An official fix is available from Microsoft. It is recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49804 to remediate this vulnerability.

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Technical Details

Data Version
5.2
Assigner Short Name
microsoft
Date Reserved
2026-06-01T17:02:37.208Z
Cvss Version
3.1
State
PUBLISHED
Remediation Level
official-fix
Vendor Advisory Urls
[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49804","vendor":"Microsoft"}]

Threat ID: 6a566f6f68715ace43e6b5b7

Added to database: 07/14/2026, 17:18:39 UTC

Last enriched: 07/15/2026, 01:34:10 UTC

Last updated: 07/15/2026, 01:34:10 UTC

Views: 2

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