CVE-2026-48583

Analyzed Analyzed - Analysis Complete

Use After Free in Windows Kernel Allows Local Privilege Escalation

Publication date: 2026-06-09

Last updated on: 2026-06-10

Assigner: Microsoft Corporation

Description

Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-06-09

Last Modified

2026-06-10

Generated

2026-06-30

AI Q&A

2026-06-09

EPSS Evaluated

2026-06-28

NVD

CVE-2026-48583

EUVD

EUVD-2026-35527

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_10_1607	to 10.0.14393.9234 (exc)
microsoft	windows_10_1607	to 10.0.14393.9234 (exc)
microsoft	windows_10_1809	to 10.0.17763.8880 (exc)
microsoft	windows_10_1809	to 10.0.17763.8880 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7417 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7417 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7417 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7417 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7417 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7417 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7219 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7219 (exc)
microsoft	windows_11_24h2	to 10.0.26100.8655 (exc)
microsoft	windows_11_24h2	to 10.0.26100.8655 (exc)
microsoft	windows_11_25h2	to 10.0.26200.8655 (exc)
microsoft	windows_11_25h2	to 10.0.26200.8655 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2269 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2269 (exc)
microsoft	windows_server_2016	to 10.0.14393.9234 (exc)
microsoft	windows_server_2019	to 10.0.17763.8880 (exc)
microsoft	windows_server_2022	to 10.0.20348.5256 (exc)
microsoft	windows_server_2025	to 10.0.26100.32995 (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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Attack-Flow Graph

Executive Summary

This vulnerability is a use after free issue in the Windows Kernel. It allows an authorized attacker to elevate their privileges locally on the affected system.

Impact Analysis

The impact of this vulnerability is that an attacker with local access can elevate their privileges, potentially gaining higher-level permissions than intended. This can lead to full control over the affected system.

Mitigation Strategies

To mitigate this vulnerability, apply the security updates provided by Microsoft as soon as possible.

Since the vulnerability allows local privilege escalation via a use after free in the Windows Kernel, ensuring your system is fully patched will prevent exploitation.

Compliance Impact

The vulnerability allows an authorized attacker to elevate privileges locally by exploiting a use after free in the Windows Kernel.

Such elevation of privilege vulnerabilities can potentially lead to unauthorized access to sensitive data or systems, which may impact compliance with standards and regulations like GDPR and HIPAA that require protection of personal and health information.

However, the provided information does not explicitly describe the direct effects on compliance with these standards.

Hi! I’m here to help you understand CVE-2026-48583. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70