CVE-2026-44821

MEDIUM

Microsoft Office Information Disclosure Vulnerability

Title source: cna
STIX 2.1

Description

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

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
Microsoft Office Information Disclosure Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44821

Scores

CVSS v3 5.5
EPSS 0.0033
EPSS Percentile 24.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-125
Status published
Products (20)
microsoft/365_apps (2 CPE variants)
Microsoft/Microsoft 365 Apps for Enterprise 16.0.1 - https://aka.ms/OfficeSecurityReleases
Microsoft/Microsoft Office 2016 16.0.0 - 16.0.5556.1005
Microsoft/Microsoft Office 2019 19.0.0 - https://aka.ms/OfficeSecurityReleases
Microsoft/Microsoft Office 365 for Mac -
Microsoft/Microsoft Office LTSC 2021 16.0.1 - https://aka.ms/OfficeSecurityReleases
Microsoft/Microsoft Office LTSC 2024 16.0.0 - https://aka.ms/OfficeSecurityReleases
Microsoft/Microsoft Office LTSC for Mac 2021 -
Microsoft/Microsoft Office LTSC for Mac 2024 -
Microsoft/Microsoft SharePoint Enterprise Server 2016 16.0.0 - 16.0.5556.1005
... and 10 more
Published Jun 09, 2026
Tracked Since Jun 09, 2026