What is CVE-2026-33822?

CVE-2026-33822 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Microsoft Word Information Disclosure Vulnerability

Which CVE IDs does CVE-2026-33822 cover?

CVE-2026-33822 covers the following CVE IDs: CVE-2026-33822. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-33822?

CVE-2026-33822 has a CVSS v3 base score of 6.1, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-33822?

CVE-2026-33822 affects 4 products, including: Microsoft 365 Apps for Enterprise for 32-bit Systems; Microsoft 365 Apps for Enterprise for 64-bit Systems; Microsoft Office LTSC for Mac 2021; Microsoft Office LTSC for Mac 2024.

CVE-2026-33822HighCVSS 6.1

Microsoft Word Information Disclosure Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

June 2, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-33822 →

📋 Description

Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.

🎯 Affected products4

Microsoft 365 Apps for Enterprise for 32-bit Systems
Microsoft 365 Apps for Enterprise for 64-bit Systems
Microsoft Office LTSC for Mac 2021
Microsoft Office LTSC for Mac 2024

✅ Remediation

KBClick to Run (Security Update) — fixed build https://aka.ms/OfficeSecurityReleases KBRelease Notes (Security Update) — fixed build 16.108.26041219

🔗 References (3)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33822
referencehttps://docs.microsoft.com/en-us/officeupdates/office365-proplus-security-updates
patchhttps://go.microsoft.com/fwlink/p/?linkid=831049