CVE-2026-68812: Microsoft Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Other sources
Microsoft Excel Remote Code Execution Vulnerability
— Microsoft
Affected Software
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 16.112.26081010 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in https://aka.ms/OfficeSecurityReleases - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.5565.1001Patch KB5002903 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.10417.20175Patch KB5002884
Event History
Frequently Asked Questions
What is the severity of CVE-2026-68812?
CVE-2026-68812 has a high severity rating of 7.8.
What causes CVE-2026-68812?
CVE-2026-68812 is caused by a heap-based buffer overflow in Microsoft Excel.
How do I fix CVE-2026-68812?
To fix CVE-2026-68812, users should apply the latest security updates for their Microsoft Excel software.
Which products are affected by CVE-2026-68812?
CVE-2026-68812 affects various versions of Microsoft Excel, including Microsoft 365 Apps, Excel 2016, Office 2019, Office 2021, and Office LTSC for Mac 2021.
What is the impact of CVE-2026-68812?
The impact of CVE-2026-68812 is that it allows unauthorized attackers to execute code locally on vulnerable systems.