{"id":"CVE-2026-102855","title":"Heap-based buffer overflow in Microsoft Office Visio allows an unauthorized attacker to execute code over a network.","summary":"Heap-based buffer overflow in Microsoft Office Visio allows an unauthorized attacker to execute code over a network.","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwe":["CWE-122"],"published":"2026-10-13","updated":"2026-10-13","sourceUpdated":"2026-10-13T22:17:22.133","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-102855","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-102855","label":"secure@microsoft.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-10-13T20:53:44.618Z","vendor":"Microsoft","product":"Microsoft 365 Apps for Enterprise","affected":["365_apps_for_enterprise >= 16.0.1 < https://aka.ms/OfficeSecurityReleases","office_ltsc_2021 >= 16.0.1 < 16.0.14334.20974","office_ltsc_2024 >= 16.0.0 < 16.0.17932.21056"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-13T21:14:39.116524Z"},"epss":0.00777,"epssPercentile":0.55624,"slug":"CVE-2026-102855","body":"## Overview\n\nHeap-based buffer overflow in Microsoft Office Visio allows an unauthorized attacker to execute code over a network.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":49,"depthScoreParts":{"impact":48.4,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}