Vulnerabilities
Microsoft Office for Mac Excel RCE Vulnerability (CVE‑2026‑97767) – Update Required
Microsoft has released patches for a remote code execution flaw in Excel on Office for Mac (CVE‑2026‑97767). Only Mac users of Office are impacted; other Office editions are unaffected. Defenders should verify that the Mac Office installation is updated to the latest version.
What happened
A remote code execution vulnerability (CVE‑2026‑97767) was discovered in Microsoft Excel for Office on macOS. The flaw allows an attacker to execute arbitrary code when a specially crafted workbook is opened.
Impact
Only users running Microsoft Office for Mac are affected. All other Office products, including Windows, Linux, and web versions, are not vulnerable.
What to do
Defenders should immediately install the latest Office for Mac update that addresses CVE‑2026‑97767. Verify the update by checking the Office version number or the update history in the application. No action is required for non‑Mac Office installations.
Related vulnerabilities
Microsoft Office for Mac RCE Vulnerability CVE-2026-81396 Fixed
Microsoft released a patch for CVE-2026-81396, a remote code execution flaw in Excel on Mac. Mac Office users must install the update immediately; other platforms are unaffected.
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Microsoft Office for Mac RCE Vulnerability CVE-2026-97750 – Immediate Update Required
Microsoft released a patch for a remote code execution flaw in Excel on macOS (CVE‑2026‑97750). The issue affects only Office for Mac; other Office products are unaffected. Install the update immediately to eliminate the risk.
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Microsoft Excel for Mac RCE Vulnerability CVE-2026-81950 – Update Required
Microsoft released a security update for Office for Mac to fix a remote code execution flaw (CVE‑2026‑81950). The vulnerability affects all current Mac versions of Excel and can be triggered by malicious spreadsheets. Defenders should ensure Office for Mac is patched; other Office products are unaffected.
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Microsoft patches Excel RCE CVE-2026-81389 in Office for Mac
Microsoft released security updates for Microsoft Office for Mac to address CVE-2026-81389, a remote code execution vulnerability in Microsoft Excel. Organizations should patch affected Mac Office installations and monitor for exploitation attempts. Other Microsoft Office products are not reported to require action.
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