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CVE-2026-55001

HIGH

7.8

CVSS 3.1

Metadata

CVE ID: CVE-2026-55001
State: PUBLISHED
Assigner: microsoft
Reserved: 2026-06-16 14:10 UTC
Published: 2026-07-14 17:04 UTC
Last updated: 2026-07-14 19:36 UTC
Primary CWE: CWE-295
CWE-295: Improper Certificate Validation
Vendor / Product: Microsoft / Windows 10 Version 1607
Sources: cve.org · NVD

Severity & Metrics

7.8 HIGH CVSS 3.1

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Affected products (9)

Vendor	Product	Platform	Versions
Microsoft	Windows 10 Version 1607	32-bit Systems,x64-based Systems	10.0.14393.0 < 10.0.14393.9339
Microsoft	Windows 10 Version 1809	32-bit Systems,x64-based Systems	10.0.17763.0 < 10.0.17763.9020
Microsoft	Windows Server 2016	x64-based Systems	10.0.14393.0 < 10.0.14393.9339
Microsoft	Windows Server 2016 (Server Core installation)	x64-based Systems	10.0.14393.0 < 10.0.14393.9339
Microsoft	Windows Server 2019	x64-based Systems	10.0.17763.0 < 10.0.17763.9020
Microsoft	Windows Server 2019 (Server Core installation)	x64-based Systems	10.0.17763.0 < 10.0.17763.9020
Microsoft	Windows Server 2022	x64-based Systems	10.0.20348.0 < 10.0.20348.5386
Microsoft	Windows Server 2025	x64-based Systems	10.0.26100.0 < 10.0.26100.33158
Microsoft	Windows Server 2025 (Server Core installation)	x64-based Systems	10.0.26100.0 < 10.0.26100.33158

Weakness (CWE)

CWE	Source	Description
CWE-295	cna	CWE-295: Improper Certificate Validation

CVSS scores (1)

Score	Severity	Version	Source	Vector
7.8	HIGH	3.1	cna	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

References (1)

Active Directory Domain Services Elevation of Privilege Vulnerability https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55001

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