cve 2026 55039

  1. CVE-2026-55039: Fix Excel Code Execution with July 14 Updates

    CVE-2026-55039 is an important-severity Microsoft Excel vulnerability that can let malicious workbook content execute code on a user’s computer, but its CVSS attack vector is Local (AV:L) because exploitation occurs only after the file reaches that computer and is opened there. The apparent...
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    • cve 2026 55039 microsoft excel office security remote code execution
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