CVE-2026-56155 :: Enginsight Vulnerability Database

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	7.8 HIGH	LOCAL	LOW	LOW	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Base Score

CVSS 3.x

EPSS Score

Percentile: Unknown

Affected Products (NVD)

Vendor	Product	Version
microsoft	windows_10_1607	𝑥 < 10.0.14393.9339
microsoft	windows_10_1607	𝑥 < 10.0.14393.9339
microsoft	windows_10_1809	𝑥 < 10.0.17763.9020
microsoft	windows_10_1809	𝑥 < 10.0.17763.9020
microsoft	windows_server_2012	-
microsoft	windows_server_2016	𝑥 < 10.0.14393.9339
microsoft	windows_server_2019	𝑥 < 10.0.17763.9020
microsoft	windows_server_2022	𝑥 < 10.0.20348.5386
microsoft	windows_server_2025	𝑥 < 10.0.26100.33158

𝑥

= Vulnerable software versions

Windows Releases

Platform

Version

Windows 10

1607 (x64, x86)	KB5099535
1809 (x64, x86)	KB5099538

Windows Server 2012

Server Core	KB5099445
Standard	KB5099445

Windows Server 2012 R2

Server Core	KB5099444
Standard	KB5099444

Windows Server 2016

Server Core	KB5099535
Standard	KB5099535

Windows Server 2019

Server Core	KB5099538
Standard	KB5099538

Windows Server 2022

Standard

Windows Server 2025

Server Core	KB5099536
Standard	KB5099536

Common Weakness Enumeration

CWE-1220 - Insufficient Granularity of Access Control
The product implements access controls via a policy or other feature with the intention to disable or restrict accesses (reads and/or writes) to assets in a system from untrusted agents. However, implemented access controls lack required granularity, which renders the control policy too broad because it allows accesses from unauthorized agents to the security-sensitive assets.

Vulnerability Media Exposure

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56155

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-56155