cve 2026 58618

  1. CVE-2026-58618: Update Excel to Block Malicious File RCE

    CVE-2026-58618 is a high-severity Microsoft Excel vulnerability that can let an attacker run code after a user opens or otherwise processes a malicious file locally. Despite Microsoft calling it a “Remote Code Execution Vulnerability,” its CVSS 3.1 vector begins with AV:L, meaning exploitation...
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    • cve 2026 58618 heap buffer overflow microsoft excel office security
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