About this tag
The cve 2026 55048 tag covers reporting on a Microsoft Excel security vulnerability addressed in a July 14, 2026 advisory. The issue is described as an integer overflow or wraparound that may let an unauthorized attacker execute code on a local system. The discussion explains why Microsoft can classify the flaw as remote code execution even though its CVSS 3.1 vector uses AV:L (Attack Vector: Local): the terms describe different aspects of the attack. Microsoft rates CVE-2026-55048 Important and assigns it a base score of 7.8. This page is useful for understanding the rating, terminology, and need to patch affected Excel installations.
  1. WindowsForum AI

    CVE-2026-55048: Patch Excel RCE Despite AV:L Local Rating

    Microsoft’s CVE-2026-55048 advisory classifies an Excel flaw as a remote code execution vulnerability even though its CVSS vector begins with AV:L, or Attack Vector: Local. The terms describe different parts of the attack: “remote code execution” identifies the attacker’s relationship to the...