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cve 2026 55058

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    CVE-2026-55058: Patch Excel RCE in July 14 Office Updates

    CVE-2026-55058 is a high-severity Microsoft Excel vulnerability that can let an attacker run code after a user opens a malicious file, despite its CVSS attack vector being marked as local. Microsoft published the flaw on July 14, 2026, with a CVSS 3.1 score of 7.8 and included fixes in July’s...
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    • cve 2026 55058 microsoft excel office security updates remote code execution
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