{"id":"CVE-2026-118293","aliases":["EUVD-2026-122560","GHSA-vxrw-3598-hxr8"],"status":"published","title":"Microsoft Office Excel Remote Code Execution Vulnerability","description":"Out-of-bounds read in Microsoft Office Excel 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":"2026-11-12","score":0.00948,"percentile":0.61661,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125","CWE-191"],"published":"2026-11-10T18:24:44Z","modified":"2026-11-10T21:33:06Z","products":[{"vendor":"microsoft","product":"microsoft 365 apps for enterprise"},{"vendor":"microsoft","product":"microsoft office 365 for mac"},{"vendor":"microsoft","product":"microsoft office ltsc 2021"},{"vendor":"microsoft","product":"microsoft office ltsc 2024"},{"vendor":"microsoft","product":"microsoft office ltsc for mac 2021"},{"vendor":"microsoft","product":"microsoft office ltsc for mac 2024"},{"vendor":"microsoft","product":"office online server"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-118293","tags":["vendor-advisory","patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118293"},{"url":"https://github.com/advisories/GHSA-vxrw-3598-hxr8"}],"sources":{"cve":[{"id":"CVE-2026-118293","title":"Microsoft Office Excel Remote Code Execution Vulnerability","description":"Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-11-10T18:24:44.148Z","modified":"2026-11-12T21:51:55.943Z","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-125","CWE-191"],"updated_at":"2026-11-10T19:39:58.44836Z"}],"euvd":[{"id":"EUVD-2026-122560","description":"Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-11-10T18:24:44Z","modified":"2026-11-12T21:51:55Z","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":"2026-11-10T23:24:34.140893Z"}],"ghsa":[{"id":"GHSA-vxrw-3598-hxr8","title":"Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over...","description":"Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-11-10T21:33:05Z","modified":"2026-11-10T21:33:06Z","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-125"],"updated_at":"2026-11-10T21:57:52.038337Z"}],"nvd":[{"id":"CVE-2026-118293","description":"Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-11-10T19:19:42.6Z","modified":"2026-11-10T20:18:19.21Z","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-125","CWE-191"],"updated_at":"2026-11-10T22:21:32.984056Z"}]}}