{"id":"CVE-2026-69778","aliases":["EUVD-2026-73242","GHSA-3r29-9xxv-2j95"],"status":"published","title":"Microsoft Office Access Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in Microsoft Office Access 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":"2026-11-09","score":0.00819,"percentile":0.57482,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122"],"published":"2026-09-08T17:13:07Z","modified":"2026-10-31T16:11:55Z","products":[{"vendor":"microsoft","product":"365_apps"},{"vendor":"microsoft","product":"access"},{"vendor":"microsoft","product":"microsoft 365 apps for enterprise"},{"vendor":"microsoft","product":"microsoft access 2016"},{"vendor":"microsoft","product":"microsoft access 2016 (32-bit edition)"},{"vendor":"microsoft","product":"microsoft office 2016"},{"vendor":"microsoft","product":"microsoft office 2019"},{"vendor":"microsoft","product":"microsoft office ltsc 2021"},{"vendor":"microsoft","product":"microsoft office ltsc 2024"},{"vendor":"microsoft","product":"office_2016"},{"vendor":"microsoft","product":"office_2019"},{"vendor":"microsoft","product":"office_2021"},{"vendor":"microsoft","product":"office_2024"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69778","tags":["vendor-advisory","patch","Vendor Advisory","Patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-69778"},{"url":"https://github.com/advisories/GHSA-3r29-9xxv-2j95"}],"sources":{"cve":[{"id":"CVE-2026-69778","title":"Microsoft Office Access Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T17:13:07.454Z","modified":"2026-10-31T16:11:55.196Z","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"],"updated_at":"2026-11-02T13:50:16.178634Z"}],"euvd":[{"id":"EUVD-2026-73242","description":"Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T17:13:07Z","modified":"2026-10-31T16:11:55Z","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":"2026-11-02T16:58:59.513791Z"}],"ghsa":[{"id":"GHSA-3r29-9xxv-2j95","title":"Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute...","description":"Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T18:32:58Z","modified":"2026-09-08T18:33:22Z","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":"2026-11-02T15:11:32.915208Z"}],"nvd":[{"id":"CVE-2026-69778","description":"Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T18:19:49.233Z","modified":"2026-09-10T14:35:18.593Z","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"],"updated_at":"2026-11-02T14:12:44.840742Z"}]}}