Vulnerabilities
CVE-2026-72977: Microsoft Office PowerPoint Information Disclosure on macOS – Patch Required
Microsoft released a patch for a PowerPoint information‑disclosure flaw (CVE‑2026‑72977) that affects Office for macOS. The vulnerability could expose sensitive data to malicious files. Administrators should update all affected macOS installations immediately; other Office platforms are unaffected.
What happened
A flaw in Microsoft Office PowerPoint for macOS allows an attacker to extract confidential information from a malicious presentation file. The issue is identified as CVE‑2026‑72977.
Impact
Only Office for macOS installations are vulnerable. The flaw can reveal hidden metadata and other sensitive data embedded in PowerPoint files. No impact on Windows or Linux Office versions.
Mitigation
Apply the latest Office update for macOS as soon as possible. Verify that the installed Office version is at least the one released in the recent security bulletin. No action is required for non‑macOS Office users.
Related vulnerabilities
CVE-2026-80086: Microsoft Office PowerPoint Information Disclosure on macOS – Update Required
Microsoft released patches for the CVE-2026-80086 PowerPoint information‑disclosure flaw affecting Office for Mac. Administrators should verify that macOS installations are updated; other Office platforms are unaffected. Apply the update immediately to eliminate the risk.
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Microsoft Excel Information Disclosure Vulnerability (CVE‑2026‑81391) – Office for Mac Update Required
Microsoft released a patch for CVE‑2026‑81391, an information‑disclosure flaw in Excel on macOS. Only Office for Mac users are affected; other Office editions do not need action. Install the update immediately to eliminate the risk.
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CVE-2026-69767: PowerPoint for Mac Remote Code Execution – Immediate Update Required
Microsoft released a patch for a remote code execution vulnerability in PowerPoint for macOS (CVE-2026-69767). Only macOS users are affected; Windows and other Office apps remain safe. Install the update immediately to prevent exploitation.
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Microsoft Office for Mac Excel Information Disclosure CVE-2026-88184 – Immediate Update Required
Microsoft released a patch for an information‑disclosure flaw in Excel on Mac (CVE‑2026‑88184). Mac users of Office must install the update to prevent data leakage. Other Office platforms are unaffected.
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