CVE-2026-68805: 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 16.0.5565.1001Patch KB5002903 - 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 16.0.10417.20175Patch KB5002884
Event History
Frequently Asked Questions
What is the severity of CVE-2026-68805?
CVE-2026-68805 has a severity rating of 7.8, categorized as high.
How do I fix CVE-2026-68805?
To fix CVE-2026-68805, it's recommended to apply the latest security updates for affected Microsoft Excel versions.
What are the potential impacts of CVE-2026-68805?
CVE-2026-68805 can lead to remote code execution, allowing attackers to execute code on the victim's machine.
Which software versions are affected by CVE-2026-68805?
CVE-2026-68805 affects Microsoft Excel 2016, Microsoft 365 Apps for Enterprise, Microsoft Office 2019, 2021, 2024, and Microsoft Office LTSC for Mac 2021.
What is the attack vector for CVE-2026-68805?
The attack vector for CVE-2026-68805 is local, requiring user interaction to trigger the vulnerability.