CVE-2026-68796: 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
Event History
Frequently Asked Questions
What is the severity of CVE-2026-68796?
CVE-2026-68796 has a high severity rating of 7.8.
How do I fix CVE-2026-68796?
To fix CVE-2026-68796, apply the latest security updates provided by Microsoft for affected versions of Excel.
What type of vulnerability is CVE-2026-68796?
CVE-2026-68796 is a heap-based buffer overflow vulnerability.
What systems are affected by CVE-2026-68796?
CVE-2026-68796 affects multiple versions of Microsoft Excel and Microsoft Office for both Windows and Mac platforms.
What can an attacker do with CVE-2026-68796?
An attacker can exploit CVE-2026-68796 to execute remote code on a victim's system running Microsoft Excel.