CVE-2026-70299

Analyzed Analyzed - Analysis Complete

Improper Access Control in Windows Bind Filter Driver

Publication date: 2026-10-13

Last updated on: 2026-10-28

Assigner: Microsoft Corporation

Description

Improper access control in Windows Bind Filter Driver allows an authorized attacker to elevate privileges locally.

CVSS Scores

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Meta Information

Published

2026-10-13

Last Modified

2026-10-28

Generated

2026-11-08

AI Q&A

2026-10-14

EPSS Evaluated

2026-11-07

NVD

CVE-2026-70299

EUVD

EUVD-2026-99422

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_11_23h2	to 10.0.22631.7652 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7652 (exc)
microsoft	windows_server_2025	to 10.0.26100.33650 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-863	The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Attack-Flow Graph

Executive Summary

This vulnerability is an improper access control issue in the Windows Bind Filter Driver. An authorized attacker with local access can exploit it to elevate their privileges on the system.

Detection Guidance

This vulnerability involves improper access control in the Windows Bind Filter Driver. Detection typically requires checking for unusual privilege escalation attempts or unauthorized modifications to system files. Use Windows Event Viewer to review logs for Event ID 4672 (Special privileges assigned) and Event ID 4688 (New process creation). Check for unexpected changes in driver files under C:\Windows\System32\drivers. Run 'sfc /scannow' to verify system file integrity and 'driverquery /v' to list all drivers for anomalies.

Impact Analysis

An attacker could gain higher-level permissions on your system, 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 due to improper access control in the Windows Bind Filter Driver. Such flaws could potentially lead to unauthorized access to sensitive data or system functions, which may impact compliance with standards like GDPR (data protection) or HIPAA (health information privacy) if exploited.

Mitigation Strategies

Apply the latest Windows security updates from Microsoft Update to patch the Bind Filter Driver vulnerability.

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