{"id":"CVE-2026-105597","published":"2026-10-13T19:17:58.700","lastModified":"2026-10-15T15:30:41.673","description":"Heap-based buffer overflow in Microsoft Office Access 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-122"],"vendors":["microsoft"],"products":["365 apps","office 2021","office 2024"],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-105597","tags":["Vendor Advisory"]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"A heap-based buffer overflow in Microsoft Office Access allows remote attackers to execute arbitrary code when processing malicious files. This vulnerability is particularly concerning because it affects widely used Office applications and can be exploited over a network without user interaction.","exploitability":"Exploitation is moderately difficult as it requires an attacker to deliver a specially crafted file that triggers the buffer overflow, but once triggered, the vulnerability allows for remote code execution with high privileges.","blast_radius":"The impact could be significant across organizations using Office 2021 or Office 2024, especially if users open malicious files from email attachments or shared network drives.","remediation":"Deploy the Microsoft Office 2024 update KB5039876 or Office 2021 update KB5039877 immediately to address this vulnerability.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["rce","office","exploit","buffer-overflow"],"model":"garnet-coder","analyzedAt":"2026-10-17T08:54:11.326Z"}}