{"id":"CVE-2026-102856","aliases":["EUVD-2026-99039","GHSA-jj8c-vxr7-9cqw"],"status":"published","title":"Microsoft Office Visio Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in Microsoft Office Visio allows an unauthorized attacker to execute code over a network.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00886,"percentile":0.59694,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122","CWE-190"],"published":"2026-10-13T18:59:28Z","modified":"2026-11-10T20:33:30Z","products":[{"vendor":"microsoft","product":"365_apps"},{"vendor":"microsoft","product":"microsoft 365 apps for enterprise"},{"vendor":"microsoft","product":"microsoft office ltsc 2021"},{"vendor":"microsoft","product":"microsoft office ltsc 2024"},{"vendor":"microsoft","product":"office_2021"},{"vendor":"microsoft","product":"office_2024"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-102856","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102856"},{"url":"https://github.com/advisories/GHSA-jj8c-vxr7-9cqw"}],"sources":{"cve":[{"id":"CVE-2026-102856","title":"Microsoft Office Visio Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in Microsoft Office Visio allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-10-13T18:59:28.397Z","modified":"2026-11-10T20:33:30.191Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-122","CWE-190"],"updated_at":"2026-11-10T22:18:24.949973Z"}],"euvd":[{"id":"EUVD-2026-99039","description":"Heap-based buffer overflow in Microsoft Office Visio allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-10-13T18:59:28Z","modified":"2026-11-10T20:33:30Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-10T21:23:24.140442Z"}],"ghsa":[{"id":"GHSA-jj8c-vxr7-9cqw","title":"Heap-based buffer overflow in Microsoft Office Visio allows an unauthorized attacker to execute...","description":"Heap-based buffer overflow in Microsoft Office Visio allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-10-13T21:32:54Z","modified":"2026-10-13T21:33:00Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T15:13:12.661896Z"}],"nvd":[{"id":"CVE-2026-102856","description":"Heap-based buffer overflow in Microsoft Office Visio allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-10-13T19:17:49.973Z","modified":"2026-10-15T17:27:50.58Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-122","CWE-190"],"updated_at":"2026-11-02T14:12:57.132005Z"}]}}