{"id":"CVE-2026-105717","published":"2026-10-13T19:17:59.617","lastModified":"2026-10-15T15:24:06.703","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-20","CWE-122"],"vendors":["microsoft"],"products":["365 apps","office 2021","office 2024"],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-105717","tags":["Vendor Advisory"]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"A heap-based buffer overflow in Microsoft Office Access allows remote attackers to execute arbitrary code on affected systems. 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 requiring a crafted malicious file that triggers the buffer overflow, with no user interaction needed once the file is opened or accessed.","blast_radius":"The vulnerability could impact thousands of users across organizations since Office Access is commonly used and the exploit can be delivered via network shares, email attachments, or web downloads.","remediation":"Deploy the Microsoft Office 2021 Security Update KB5043798 or Office 2024 Security Update KB5043799 immediately to all affected systems.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["rce","office","network","buffer-overflow"],"model":"garnet-coder","analyzedAt":"2026-10-17T08:54:29.813Z"}}