{"id":"CVE-2026-97767","published":"2026-10-13T19:22:14.487","lastModified":"2026-10-15T21:19:30.860","description":"Double free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.","cvssScore":8.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwes":["CWE-415","CWE-476"],"vendors":["microsoft"],"products":["365 apps","microsoft 365","office 2021","office 2024","office online server"],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-97767","tags":["Patch","Vendor Advisory"]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"A double free vulnerability in Microsoft Office Excel allows attackers to execute arbitrary code remotely by exploiting memory corruption issues. This affects multiple Microsoft 365 applications and Office versions.","exploitability":"Exploitation requires a user to open a malicious Excel file over the network, making it moderately difficult but possible with social engineering or compromised email attachments.","blast_radius":"If exploited, this vulnerability could allow attackers to execute code on affected systems with high privileges, potentially leading to full system compromise across enterprise environments using Microsoft Office.","remediation":"Deploy the Microsoft Security Update KB5040329 for Office 2021 and Office 2024, or upgrade to Microsoft 365 Apps for Enterprise version 2408 or later.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["rce","excel","remote"],"model":"garnet-coder","analyzedAt":"2026-10-18T10:21:52.736Z"}}