CVE-2026-61927

Undergoing Analysis Undergoing Analysis - In Progress

Use After Free in Windows Bind Filter Driver Allows Privilege Escalation

Publication date: 2026-08-11

Last updated on: 2026-08-13

Assigner: Microsoft Corporation

Description

Use after free in Windows Bind Filter Driver allows an authorized attacker to elevate privileges locally.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-08-11

Last Modified

2026-08-13

Generated

2026-09-01

AI Q&A

2026-08-12

EPSS Evaluated

2026-08-30

NVD

CVE-2026-61927

EUVD

EUVD-2026-56332

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-416	The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
CWE-362	The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

Attack-Flow Graph

Executive Summary

This is a use-after-free vulnerability in the Windows Bind Filter Driver. It allows an authorized attacker to elevate their privileges locally by exploiting a memory management flaw where freed memory is accessed improperly.

Detection Guidance

This vulnerability involves a use-after-free issue in the Windows Bind Filter Driver. Detection typically requires analyzing system logs for crashes or unusual behavior in the driver. Microsoft may provide detection tools or updates via Windows Update. Check the Microsoft Security Response Center (MSRC) for official guidance or patches.

Impact Analysis

An attacker with local access could exploit this to gain higher privileges 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, which could enable unauthorized access to sensitive data or system functions. Such access could violate compliance requirements under GDPR (data protection) or HIPAA (health information security) if exploited to access protected data.

Mitigation Strategies

Apply the latest security updates from Microsoft to patch the Windows Bind Filter Driver vulnerability. Monitor Microsoft's security advisories for updates and ensure all systems are updated promptly.

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