CVE-2026-45657 :: Enginsight Vulnerability Database

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	9.8 CRITICAL	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Base Score

CVSS 3.x

EPSS Score

Percentile: 96%

Affected Products (NVD)

Vendor	Product	Version
microsoft	windows_11_23h2	𝑥 < 10.0.22631.7219
microsoft	windows_11_23h2	𝑥 < 10.0.22631.7219
microsoft	windows_11_24h2	𝑥 < 10.0.26100.8655
microsoft	windows_11_24h2	𝑥 < 10.0.26100.8655
microsoft	windows_11_25h2	𝑥 < 10.0.26200.8655
microsoft	windows_11_25h2	𝑥 < 10.0.26200.8655
microsoft	windows_11_26h1	𝑥 < 10.0.28000.2269
microsoft	windows_11_26h1	𝑥 < 10.0.28000.2269
microsoft	windows_server_2022	𝑥 < 10.0.20348.5256
microsoft	windows_server_2025	𝑥 < 10.0.26100.32995

𝑥

= Vulnerable software versions

Windows Releases

Platform

Version

Windows 11

23H2 (arm64, x64)	KB5093998
24H2 (arm64, x64)	KB5094126
25H2 (arm64, x64)	KB5094126
26H1 (arm64, x64)	KB5095051

Windows Server 2022

Server Core	KB5094128
Standard	KB5094128

Windows Server 2025

Server Core	KB5094125
Standard	KB5094125

Common Weakness Enumeration

CWE-122 - Heap-based Buffer Overflow
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().

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45657