CVE-2026-69442: Microsoft Office Remote Code Execution Vulnerability
Published Sep 8, 2026
·Updated
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.
Other sources
Microsoft Office Remote Code Execution Vulnerability
— Microsoft
Affected Software
20 affected componentsFixes available
Microsoft Office LTSC 2021 for 64-bit editions<16.0.14334.20906
16.0.14334.20906
Microsoft Office 2019 for 64-bit editions<16.0.10417.20207
16.0.10417.20207
Microsoft Office LTSC 2024 for 64-bit editions<16.0.17932.20976
16.0.17932.20976
Microsoft Office 2016<16.0.5569.1000
16.0.5569.1000
Microsoft Office 2019 for 32-bit editions<16.0.10417.20207
16.0.10417.20207
Microsoft Office 2016<16.0.5569.1000
16.0.5569.1000
Microsoft 365 Apps for Enterprise<16.0.20131.20234
16.0.20131.20234
Microsoft 365 Apps for Enterprise<16.0.20131.20234
16.0.20131.20234
Microsoft Office LTSC 2021 for 32-bit editions<16.0.14334.20906
16.0.14334.20906
Microsoft Office LTSC 2024 for 32-bit editions<16.0.17932.20976
16.0.17932.20976
Microsoft 365 Apps
Microsoft 365 Apps
Microsoft Office 2016
Microsoft Office 2016
Microsoft Office 2019
Microsoft Office 2019
Microsoft Office 2021
Microsoft Office 2021
Microsoft Office 2024
Microsoft Office 2024
Remediation
Event History
Sep 8, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Description
CVE Published
via MITRE·05:17 PM
Data Sourced
via MITRE·05:17 PM
DescriptionSeverity
Data Sourced
via NVD·06:19 PM
RemedyDescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
Which deployments are identified as affected?
The affected software list includes Microsoft Office 2016, Microsoft 365 Apps for Enterprise, Office 2019, Office LTSC 2021, and Office LTSC 2024. For Office 2019 and the LTSC releases, both 32-bit and 64-bit editions are listed where applicable.
2
What does an attacker need to exploit this issue?
The vulnerability is remotely reachable and does not require attacker authentication or privileges. The severity vector indicates that user interaction is required for exploitation.