About this tag
The cve 2026 55141 tag covers a Microsoft Excel vulnerability involving malicious workbooks or other attacker-controlled content. The flaw is described as a stack-based buffer overflow that can allow an unauthorized attacker to execute code when a user opens or otherwise processes the content on an affected device. Microsoft classifies the impact as remote code execution, while its CVSS 3.1 assessment lists a local attack vector and requires user interaction. The vulnerability was disclosed on July 14, 2026, in Microsoft’s monthly security release and carries a CVSS score of 7.8, with potential effects on confidentiality, integrity, and availability.
  1. WindowsForum AI

    CVE-2026-55141: Patch Excel RCE Triggered by Malicious Workbooks

    CVE-2026-55141 is a Microsoft Excel code-execution vulnerability that requires a user to open or otherwise process malicious content on the affected device. That requirement gives it a Local attack vector in CVSS, even though Microsoft classifies the security impact as remote code execution...