Aug 2026: Microsoft Excel Remote Code Execution Vulnerability
CVE-2026-68806 Published on August 11, 2026
Microsoft Excel Remote Code Execution Vulnerability
Out-of-bounds write in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Weakness Type
What is a Memory Corruption Vulnerability?
The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.
CVE-2026-68806 has been classified to as a Memory Corruption vulnerability or weakness.
Products Associated with CVE-2026-68806
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Affected Versions
Microsoft 365 Apps for Enterprise:- Version 16.0.1 and below https://aka.ms/OfficeSecurityReleases is affected.
- Version 16.0.0.0 and below 16.0.5565.1001 is affected.
- Version 19.0.0 and below https://aka.ms/OfficeSecurityReleases is affected.
- Version 1.0.0 and below 16.112.26081010 is affected.
- Version 16.0.1 and below https://aka.ms/OfficeSecurityReleases is affected.
- Version 16.0.0 and below https://aka.ms/OfficeSecurityReleases is affected.
- Version 16.0.1 and below 16.112.26081010 is affected.
- Version 16.0.0 and below 16.112.26081010 is affected.
- Version 16.0.0.0 and below 16.0.10417.20175 is affected.