Information Disclosure in Windows Win32K Affects Microsoft Products
CVE-2026-119856

5.5MEDIUM

Key Information:

Vendor: Microsoft
Status: Microsoft Office 365 For Mac; Microsoft Office For Android; Microsoft Office Ltsc For Mac 2021; Microsoft Office Ltsc For Mac 2024
Vendor: CVE Published:; 10 November 2026

What is CVE-2026-119856?

A vulnerability in Windows Win32K allows an authenticated attacker to expose sensitive system information. This issue arises due to inadequate boundary checks within the component, enabling an attacker to gain unauthorized access to potentially confidential data. Users are encouraged to apply the latest security updates to mitigate the risks posed by this vulnerability.

Affected Version(s)

Microsoft Office 365 for Mac 1.0.0 < 16.115.26110837

Microsoft Office for Android 16.0.1 < 16.0.20625.20014

Microsoft Office LTSC for Mac 2021 16.0.1 < 16.115.26110837

References

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

vendor-advisorypatch

CVSS V3.1

Score:

5.5

Severity:

MEDIUM

Confidentiality:

High

Integrity:

None

Availability:

High

Attack Vector:

Local

Attack Complexity:

Low

Privileges Required:

Low

User Interaction:

None

Scope:

Unchanged

Download the Critical Vulnerability Management Cheat Sheet

Timeline

Vulnerability published
Nov 10, 2026
Vulnerability Reserved
Oct 30, 2026

CVE-2026-119856 Data

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