๐Ÿ” CVE Alert

CVE-2026-80089

MEDIUM 6.5

Microsoft Office Information Disclosure Vulnerability

CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th

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

Vendor microsoft
Product microsoft 365 apps for enterprise
Ecosystems
Industries
TechnologyEnterprise
Published Sep 8, 2026
Last Updated Sep 15, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability

Affected Versions

Microsoft / Microsoft 365 Apps for Enterprise
16.0.1 < 16.0.20326.20138
Microsoft / Microsoft Office 2016
16.0.0 < 16.0.5569.1000
Microsoft / Microsoft Office 2019
19.0.0 < 16.0.10417.20207
Microsoft / Microsoft Office 365 for Mac
-
Microsoft / Microsoft Office LTSC 2021
16.0.1 < 16.0.14334.20906
Microsoft / Microsoft Office LTSC 2024
16.0.0 < 16.0.17932.20976
Microsoft / Microsoft Office LTSC for Mac 2021
16.0.1 < 16.112.26083020
Microsoft / Microsoft Office LTSC for Mac 2024
16.0.0 < 16.112.26083020

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
msrc.microsoft.com: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80089