cve 2026 55025

The cve 2026 55025 tag covers a high-severity Microsoft Excel code-execution vulnerability disclosed in the July 14, 2026, Office updates. The issue has a CVSS 3.1 score of 7.8 and can be triggered when Excel processes a malicious file or equivalent local input. Although Microsoft describes the flaw as a Remote Code Execution Vulnerability, its CVSS vector uses a Local attack vector because exploitation requires interaction with the victim’s computer. Successful exploitation may allow an attacker to run code with significant effects on confidentiality, integrity, and availability. This tag provides focused coverage of the vulnerability, its scoring, exploitation conditions, and the related Office patching context.