CVE-2026-80076: Microsoft Office Information Disclosure Vulnerability
Published Sep 8, 2026
·Updated
Microsoft Office Information Disclosure Vulnerability
Other sources
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information over a network.
— Microsoft
Affected Software
11 affected componentsFixes available
Microsoft Office 365 for Mac
Microsoft Office LTSC 2024 for 32-bit editions<16.0.17932.20960
16.0.17932.20960
Microsoft 365 Apps for Enterprise<16.0.20326.20136
16.0.20326.20136
Microsoft Office LTSC 2024 for 64-bit editions<16.0.17932.20960
16.0.17932.20960
Microsoft Office LTSC for Mac 2024
Microsoft Office LTSC 2021 for 64-bit editions<16.0.14334.20896
16.0.14334.20896
Microsoft 365 Apps for Enterprise<16.0.20326.20136
16.0.20326.20136
Microsoft Office LTSC for Mac 2021
Microsoft Office LTSC 2021 for 32-bit editions<16.0.14334.20896
16.0.14334.20896
Microsoft Office 2019 for 32-bit editions<16.0.10417.20204
16.0.10417.20204
Microsoft Office 2019 for 64-bit editions<16.0.10417.20204
16.0.10417.20204
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.17932.20960 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.20326.20136 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.14334.20896 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.10417.20204
Event History
Sep 8, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Description
CVE Published
via MITRE·05:18 PM
Data Sourced
via MITRE·05:18 PM
DescriptionSeverity
Data Sourced
via NVD·06:20 PM
DescriptionSeverityWeakness