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EPSS 0.3%top 81%

CVE-2026-48578: CWE-284: Improper Access Control in Microsoft Windows 10 Version 1607

0
High
VulnerabilityCVE-2026-48578cvecve-2026-48578cwe-284gcve
Published: 06/09/2026 (06/09/2026, 17:05:15 UTC)
Source: CVE Database V5
Vendor/Project: Microsoft
Product: Windows 10 Version 1607

Description

Improper access control in Windows Secure Boot allows an authorized attacker to elevate privileges locally.

CVSS v3.1

Score 7.9high

Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C

Affected software

Microsoft

Windows 10 Version 1607

Affected versions
>=10.0.14393.0 <10.0.14393.9234

Microsoft

Windows 10 Version 1809

Affected versions
>=10.0.17763.0 <10.0.17763.8880

Microsoft

Windows 10 Version 21H2

Affected versions
>=10.0.19044.0 <10.0.19044.7417

Microsoft

Windows 10 Version 22H2

Affected versions
>=10.0.19045.0 <10.0.19045.7417

Microsoft

Windows 11 version 23H2

Affected versions
>=10.0.22631.0 <10.0.22631.7219

Microsoft

Windows 11 Version 23H2

Affected versions
>=10.0.22631.0 <10.0.22631.7219

Microsoft

Windows 11 Version 24H2

Affected versions
>=10.0.26100.0 <10.0.26100.8655

Microsoft

Windows 11 Version 25H2

Affected versions
>=10.0.26200.0 <10.0.26200.8655

Microsoft

Windows 11 version 26H1

Affected versions
>=10.0.28000.0 <10.0.28000.2269

Microsoft

Windows Server 2012

Affected versions
>=6.2.9200.0 <6.2.9200.26132

Microsoft

Windows Server 2012 (Server Core installation)

Affected versions
>=6.2.9200.0 <6.2.9200.26132

Microsoft

Windows Server 2012 R2

Affected versions
>=6.3.9600.0 <6.3.9600.23228

Microsoft

Windows Server 2012 R2 (Server Core installation)

Affected versions
>=6.3.9600.0 <6.3.9600.23228

Microsoft

Windows Server 2016

Affected versions
>=10.0.14393.0 <10.0.14393.9234

Microsoft

Windows Server 2016 (Server Core installation)

Affected versions
>=10.0.14393.0 <10.0.14393.9234

Microsoft

Windows Server 2019

Affected versions
>=10.0.17763.0 <10.0.17763.8880

Microsoft

Windows Server 2019 (Server Core installation)

Affected versions
>=10.0.17763.0 <10.0.17763.8880

Microsoft

Windows Server 2022

Affected versions
>=10.0.20348.0 <10.0.20348.5256

Microsoft

Windows Server 2025

Affected versions
>=10.0.26100.0 <10.0.26100.32995

Microsoft

Windows Server 2025 (Server Core installation)

Affected versions
>=10.0.26100.0 <10.0.26100.32995

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 08/14/2026, 13:52:01 UTC

Technical Analysis

This vulnerability, identified as CWE-284 (Improper Access Control), affects Windows 10 Version 1607 (build 10.0.14393.0). It involves a flaw in the Secure Boot mechanism that could be exploited by an authorized local attacker to elevate privileges. The CVSS v3.1 base score is 7.9, indicating a high severity impact with high confidentiality and integrity impact but no availability impact. Microsoft has released an official fix for this vulnerability as documented in their security update guide.

Potential Impact

An authorized local attacker with high privileges can exploit this vulnerability to elevate their privileges further, potentially gaining greater control over the affected system. The confidentiality and integrity of the system could be significantly compromised. There are no known exploits in the wild at this time.

Mitigation Recommendations

Microsoft has provided an official fix for this vulnerability. Users and administrators should apply the security update available from Microsoft to remediate this issue. No additional mitigation steps are required beyond applying the official patch.

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Technical Details

Data Version
5.2
Assigner Short Name
microsoft
Date Reserved
2026-05-21T20:00:35.246Z
Cvss Version
3.1
State
PUBLISHED
Remediation Level
official-fix
Vendor Advisory Urls
[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48578","vendor":"Microsoft"}]

Threat ID: 6a284d178dd33fbd85665a09

Added to database: 06/09/2026, 17:27:51 UTC

Last enriched: 08/14/2026, 13:52:01 UTC

Last updated: 09/12/2026, 10:01:31 UTC

Views: 79

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