CVE-2026-50472

Analyzed Analyzed - Analysis Complete

Heap-based Buffer Overflow in Windows LUAFV

Publication date: 2026-08-11

Last updated on: 2026-08-16

Assigner: Microsoft Corporation

Description

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

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-08-11

Last Modified

2026-08-16

Generated

2026-09-01

AI Q&A

2026-08-12

EPSS Evaluated

2026-08-30

NVD

CVE-2026-50472

EUVD

EUVD-2026-56287

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_server_2012	r2
microsoft	windows_server_2012	*
microsoft	windows_10_1607	to 10.0.14393.9418 (exc)
microsoft	windows_10_1607	to 10.0.14393.9418 (exc)
microsoft	windows_10_1809	to 10.0.17763.9115 (exc)
microsoft	windows_10_1809	to 10.0.17763.9115 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7663 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7663 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7663 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7663 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7663 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7663 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7517 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7517 (exc)
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_2016	to 10.0.14393.9418 (exc)
microsoft	windows_server_2019	to 10.0.17763.9115 (exc)
microsoft	windows_server_2022	to 10.0.20348.5440 (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 Windows LUAFV (Local User Account Filtering Virtualization). An authorized attacker can exploit this flaw to cause a buffer overflow, which may allow them to elevate their privileges on the affected system.

Detection Guidance

Detection requires monitoring for unusual privilege escalation events or heap-based buffer overflow indicators in Windows LUAFV. Check Windows Event Logs for Event ID 4688 (process creation) and Event ID 1000 (application crashes). Use Process Monitor to track LUAFV-related process activity and memory access patterns.

Impact Analysis

If exploited, this vulnerability could allow an attacker with local access to gain higher privileges on your system. This might enable 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 Windows LUAFV. Such attacks could enable unauthorized access to sensitive data or system functions, potentially violating confidentiality requirements in GDPR and HIPAA.

Mitigation Strategies

Apply the latest security updates from Microsoft to patch the heap-based buffer overflow in Windows LUAFV. Monitor Microsoft's update guide for patches and install them promptly.

Hi! I’m here to help you understand CVE-2026-50472. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70