{"id":"CVE-2026-88202","published":"2026-10-13T19:21:41.797","lastModified":"2026-10-15T21:19:09.360","description":"Heap-based buffer overflow in Microsoft Office Word 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","microsoft 365","office 2021","office 2024"],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88202","tags":["Vendor Advisory"]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"A heap-based buffer overflow in Microsoft Word allows remote attackers to execute arbitrary code when processing malicious documents. This vulnerability is particularly dangerous because it can be triggered over a network without user interaction, making it ideal for remote exploitation.","exploitability":"Exploitation is moderately difficult and requires a victim to open a specially crafted Word document, though the attack can be delivered via email or web download with minimal user interaction needed.","blast_radius":"The vulnerability affects Microsoft 365 apps, Office 2021, and Office 2024, potentially impacting thousands of users across organizations that rely on Word for document processing.","remediation":"Deploy the Microsoft Office 2021 or Office 2024 update KB5040000 or later to mitigate this vulnerability.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["rce","word","buffer-overflow"],"model":"garnet-coder","analyzedAt":"2026-10-18T10:17:45.580Z"}}