{"schemaVersion":3,"id":"CVE-2026-108442","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Use after free in Microsoft Office Word allows an unauthorized attacker to execute code over a network.","dates":{"published":"2026-10-15T20:57:24.871Z","modified":"2026-10-19T23:41:28.509Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.8,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","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","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":8.8,"severity":"high","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","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":8.8,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00442,"percentile":0.36996,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[{"date":"2026-10-16T00:00:00.000Z","score":0.00442,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00442,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00442,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00442,"percentile":0.36996}],"last30":[{"date":"2026-10-16T00:00:00.000Z","score":0.00442,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00442,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00442,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00442,"percentile":0.36996}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-416","name":"Use After Free","description":"The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory \"belongs\" to the code that operates on the new pointer.","type":"weakness","status":"Stable","abstraction":"Variant","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/416.html"}],"affected":[{"vendor":"microsoft","product":"microsoft 365 apps for enterprise","name":"Microsoft 365 Apps for Enterprise","label":"microsoft 365 apps for enterprise","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases","eol":null,"hubHref":"/vendor/microsoft/microsoft_365_apps_for_enterprise"},{"vendor":"microsoft","product":"microsoft office 365 for mac","name":"Microsoft Office 365 for Mac","label":"microsoft office 365 for mac","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 1.0.0, < 16.114.26101123","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 1.0.0, < 16.114.26101123","eol":null,"hubHref":"/vendor/microsoft/microsoft_office_365_for_mac"},{"vendor":"microsoft","product":"microsoft office ltsc 2021","name":"Microsoft Office LTSC 2021","label":"microsoft office ltsc 2021","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 16.0.1, < 16.0.14334.20974","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 16.0.1, < 16.0.14334.20974","eol":null,"hubHref":"/vendor/microsoft/microsoft_office_ltsc_2021"},{"vendor":"microsoft","product":"microsoft office ltsc 2024","name":"Microsoft Office LTSC 2024","label":"microsoft office ltsc 2024","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 16.0.0, < 16.0.17932.21056","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 16.0.0, < 16.0.17932.21056","eol":null,"hubHref":"/vendor/microsoft/microsoft_office_ltsc_2024"},{"vendor":"microsoft","product":"microsoft office ltsc for mac 2021","name":"Microsoft Office LTSC for Mac 2021","label":"microsoft office ltsc for mac 2021","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 16.0.1, < 16.114.26101123","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 16.0.1, < 16.114.26101123","eol":null,"hubHref":"/vendor/microsoft/microsoft_office_ltsc_for_mac_2021"},{"vendor":"microsoft","product":"microsoft office ltsc for mac 2024","name":"Microsoft Office LTSC for Mac 2024","label":"microsoft office ltsc for mac 2024","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 16.0.0, < 16.114.26101123","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 16.0.0, < 16.114.26101123","eol":null,"hubHref":"/vendor/microsoft/microsoft_office_ltsc_for_mac_2024"}],"affectedCount":6,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-108442","label":"msrc.microsoft.com/update-guide/vulnerability/CVE-2026-108442","hostname":"msrc.microsoft.com","tags":["Vendor Advisory","Patch"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-10-15T20:57:24.871Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-19T23:41:28.509Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":35,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T03:43:03.533Z","stale":false,"partial":false}}