CVE-2026-54991 :: 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

Awaiting analysis

This vulnerability is currently awaiting analysis.

Base Score

CVSS 3.x

EPSS Score

Percentile: Unknown

Windows Releases

Platform

Version

Windows 11

24H2 (arm64, x64)	KB5101650
25H2 (arm64, x64)	KB5101650
26H1 (arm64, x64)	KB5101649

Windows Server 2025

Server Core	KB5099536
Standard	KB5099536

Common Weakness Enumeration

CWE-125 - Out-of-bounds Read
The software reads data past the end, or before the beginning, of the intended buffer.

Vulnerability Media Exposure

[ENGLISH] Microsoft July 2026 Patch Tuesday fixes massive 570 flaws, 3 zero-days
Today is Microsoft's July 2026 Patch Tuesday, and with it comes security updates for a record-breaking 570 flaws, including two zero-day vulnerabilities exploited in attacks and one publicly disclosed. [...]
Published: 2026-07-14T14:01:36-04:00

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54991