CVE-2026-68813: Microsoft Excel Information Disclosure Vulnerability
Published Aug 11, 2026
·Updated
Microsoft Excel Information Disclosure Vulnerability
Other sources
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
— Microsoft
Affected Software
23 affected componentsFixes available
Microsoft Excel
Microsoft Office 2019 for 32-bit editions<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft 365 Apps for Enterprise<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft Office LTSC 2024 for 64-bit editions<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft Office LTSC for Mac 2024<16.112.26081010
16.112.26081010
Microsoft Office LTSC 2021 for 64-bit editions<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft Office 2019 for 64-bit editions<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft Office LTSC 2024 for 32-bit editions<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft Office 365 for Mac<16.112.26081010
16.112.26081010
Microsoft Office LTSC for Mac 2021<16.112.26081010
16.112.26081010
Microsoft Office LTSC 2021 for 32-bit editions<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft 365 Apps for Enterprise<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft 365 Apps
Microsoft 365 Apps
Microsoft Microsoft 365 Macos
Microsoft Office 2019
Microsoft Office 2019
Microsoft Office 2021
Microsoft Office 2021
Microsoft Office 2021 Macos
Microsoft Office 2024
Microsoft Office 2024
Microsoft Office 2024 Macos
Remediation
Event History
Aug 11, 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·05:05 PM
Data Sourced
via MITRE·05:05 PM
DescriptionSeverity
Data Sourced
via NVD·05:19 PM
RemedyDescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-68813?
The severity of CVE-2026-68813 is classified as medium with a CVSS score of 5.5.
2
How do I fix CVE-2026-68813?
To fix CVE-2026-68813, ensure that your Microsoft Office applications are updated to the latest version provided by Microsoft.
3
What type of vulnerability is CVE-2026-68813?
CVE-2026-68813 is classified as an information disclosure vulnerability due to an out-of-bounds read.
4
Which versions of Microsoft Office are affected by CVE-2026-68813?
CVE-2026-68813 affects Microsoft 365 Apps for Enterprise, Microsoft Excel, Microsoft Office 2019, and various editions of Microsoft Office LTSC 2024 and 2021.
5
Can CVE-2026-68813 be exploited remotely?
CVE-2026-68813 requires local access for exploitation, as it allows unauthorized information disclosure locally.