{"id":"CVE-2026-70329","aliases":["EUVD-2026-56585","GHSA-25v6-4vqg-8444"],"status":"published","title":"Microsoft Outlook Remote Code Execution Vulnerability","description":"Integer overflow or wraparound in Microsoft Office Outlook 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":0.57493,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-190"],"published":"2026-08-11T17:05:30Z","modified":"2026-10-30T17:21:15Z","products":[{"vendor":"microsoft","product":"365_apps"},{"vendor":"microsoft","product":"microsoft 365 apps for enterprise"},{"vendor":"microsoft","product":"microsoft office 2019"},{"vendor":"microsoft","product":"microsoft office ltsc 2021"},{"vendor":"microsoft","product":"microsoft office ltsc 2024"},{"vendor":"microsoft","product":"microsoft outlook 2016"},{"vendor":"microsoft","product":"office_2019"},{"vendor":"microsoft","product":"office_2021"},{"vendor":"microsoft","product":"office_2024"},{"vendor":"microsoft","product":"outlook"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70329","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-70329"},{"url":"https://github.com/advisories/GHSA-25v6-4vqg-8444"}],"sources":{"cve":[{"id":"CVE-2026-70329","title":"Microsoft Outlook Remote Code Execution Vulnerability","description":"Integer overflow or wraparound in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-08-11T17:05:30.497Z","modified":"2026-10-30T17:21:15.745Z","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-190"],"updated_at":"2026-11-02T13:35:33.380441Z"}],"euvd":[{"id":"EUVD-2026-56585","description":"Integer overflow or wraparound in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-08-11T17:05:30Z","modified":"2026-10-30T17:21:15Z","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":"2026-11-02T16:59:04.296921Z"}],"ghsa":[{"id":"GHSA-25v6-4vqg-8444","title":"Integer overflow or wraparound in Microsoft Office Outlook allows an unauthorized attacker to...","description":"Integer overflow or wraparound in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-08-11T18:31:49Z","modified":"2026-08-11T18:31:56Z","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-190"],"updated_at":"2026-11-02T15:10:20.59674Z"}],"nvd":[{"id":"CVE-2026-70329","description":"Integer overflow or wraparound in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-08-11T17:19:10.777Z","modified":"2026-08-14T15:33:03.13Z","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-190"],"updated_at":"2026-11-02T14:12:36.880938Z"}]}}