CVE-2026-62722

Modified Modified - Updated After Analysis

Heap-based Buffer Overflow in Windows Bind Filter Driver

Publication date: 2026-08-11

Last updated on: 2026-08-17

Assigner: Microsoft Corporation

Description

Heap-based buffer overflow in Windows Brokering File System allows an authorized attacker to elevate privileges locally.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-11

Last Modified

2026-08-17

Generated

2026-09-01

AI Q&A

2026-08-12

EPSS Evaluated

2026-08-30

NVD

CVE-2026-62722

EUVD

EUVD-2026-56358

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_11_24h2	to 10.0.26100.9106 (exc)
microsoft	windows_11_24h2	to 10.0.26100.9106 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2704 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2704 (exc)
microsoft	windows_11_25h2	to 10.0.26200.9106 (exc)
microsoft	windows_11_25h2	to 10.0.26200.9106 (exc)
microsoft	windows_server_2025	to 10.0.26100.33222 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-122	A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

Attack-Flow Graph

Executive Summary

This is a heap-based buffer overflow vulnerability in the Windows Bind Filter Driver. It allows an authorized attacker with local access to elevate their privileges on the system.

Detection Guidance

This vulnerability is a local privilege escalation issue in the Windows Bind Filter Driver. Detection typically requires analyzing system logs for unusual activity in the driver or monitoring for unexpected privilege changes. Use Windows Event Viewer to check for driver-related errors or system crashes. Microsoft's official security updates should be applied to mitigate this issue.

Impact Analysis

An attacker could exploit this to gain higher-level permissions on your system, potentially allowing them to install programs, view or delete data, or create new accounts with full user rights.

Compliance Impact

This vulnerability allows local privilege escalation via a heap-based buffer overflow in the Windows Bind Filter Driver. Such attacks could enable unauthorized access to sensitive data or system functions, potentially violating compliance requirements for data protection and access controls in standards like GDPR and HIPAA.

Mitigation Strategies

Apply the latest security updates from Microsoft to patch the Windows Bind Filter Driver vulnerability. Monitor Microsoft's update guide for patches and install them promptly.

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