{"api_version":"1","generated_at":"2026-06-11T21:34:33+00:00","cve":"CVE-2026-45457","urls":{"html":"https://cve.report/CVE-2026-45457","api":"https://cve.report/api/cve/CVE-2026-45457.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-45457","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-45457"},"summary":{"title":"Microsoft Word Remote Code Execution Vulnerability","description":"Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.","state":"PUBLISHED","assigner":"microsoft","published_at":"2026-06-09 17:17:19","updated_at":"2026-06-11 18:38:34"},"problem_types":["CWE-125","CWE-125 CWE-125: Out-of-bounds Read"],"metrics":[{"version":"3.1","source":"secure@microsoft.com","type":"Primary","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","data":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","version":"3.1"}}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45457","name":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45457","refsource":"secure@microsoft.com","tags":["Vendor Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-45457","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45457","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Microsoft","product":"Microsoft 365 Apps for Enterprise","version":"affected 16.0.1 https://aka.ms/OfficeSecurityReleases custom","platforms":["32-bit Systems","x64-based Systems"]},{"source":"CNA","vendor":"Microsoft","product":"Microsoft Office 365 for Mac","version":"affected -","platforms":[]},{"source":"CNA","vendor":"Microsoft","product":"Microsoft Office LTSC for Mac 2021","version":"affected -","platforms":[]},{"source":"CNA","vendor":"Microsoft","product":"Microsoft Office LTSC for Mac 2024","version":"affected -","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2026","cve_id":"45457","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"microsoft","cpe5":"365_apps","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"enterprise","cpe11":"*","cpe12":"x64","cpe13":"*"},{"cve_year":"2026","cve_id":"45457","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"microsoft","cpe5":"365_apps","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"enterprise","cpe11":"*","cpe12":"x86","cpe13":"*"},{"cve_year":"2026","cve_id":"45457","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"microsoft","cpe5":"microsoft_365","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"macos","cpe12":"*","cpe13":"*"},{"cve_year":"2026","cve_id":"45457","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"microsoft","cpe5":"office_2021","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"ltsc","cpe11":"macos","cpe12":"-","cpe13":"*"},{"cve_year":"2026","cve_id":"45457","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"microsoft","cpe5":"office_2024","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"ltsc","cpe11":"macos","cpe12":"-","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"45457","cve":"CVE-2026-45457","epss":"0.000790000","percentile":"0.234080000","score_date":"2026-06-10","updated_at":"2026-06-11 00:06:40"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-45457","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2026-06-10T03:57:27.338452Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-06-10T10:20:35.998Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"platforms":["32-bit Systems","x64-based Systems"],"product":"Microsoft 365 Apps for Enterprise","vendor":"Microsoft","versions":[{"lessThan":"https://aka.ms/OfficeSecurityReleases","status":"affected","version":"16.0.1","versionType":"custom"}]},{"product":"Microsoft Office 365 for Mac","vendor":"Microsoft","versions":[{"status":"affected","version":"-"}]},{"product":"Microsoft Office LTSC for Mac 2021","vendor":"Microsoft","versions":[{"status":"affected","version":"-"}]},{"product":"Microsoft Office LTSC for Mac 2024","vendor":"Microsoft","versions":[{"status":"affected","version":"-"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:microsoft:office_365:*:*:*:*:*:macos:*:*","versionStartIncluding":"-","vulnerable":true},{"criteria":"cpe:2.3:a:microsoft:365_apps:*:*:*:*:enterprise:*:*:*","versionEndExcluding":"https://aka.ms/OfficeSecurityReleases","versionStartIncluding":"16.0.1","vulnerable":true},{"criteria":"cpe:2.3:a:microsoft:office_macos_2021:*:*:*:*:*:long_term_servicing_channel:*:*","versionStartIncluding":"-","vulnerable":true},{"criteria":"cpe:2.3:a:microsoft:office_macos_2024:*:*:*:*:*:long_term_servicing_channel:*:*","versionStartIncluding":"-","vulnerable":true}],"negate":false,"operator":"OR"}]}],"datePublic":"2026-06-09T14:00:00.000Z","descriptions":[{"lang":"en-US","value":"Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally."}],"metrics":[{"cvssV3_1":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en-US","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-125","description":"CWE-125: Out-of-bounds Read","lang":"en-US","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-06-10T17:54:14.429Z","orgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","shortName":"microsoft"},"references":[{"name":"Microsoft Word Remote Code Execution Vulnerability","tags":["vendor-advisory","patch"],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45457"}],"title":"Microsoft Word Remote Code Execution Vulnerability"}},"cveMetadata":{"assignerOrgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","assignerShortName":"microsoft","cveId":"CVE-2026-45457","datePublished":"2026-06-09T17:05:24.019Z","dateReserved":"2026-05-12T16:06:43.097Z","dateUpdated":"2026-06-10T17:54:14.429Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-09 17:17:19","lastModifiedDate":"2026-06-11 18:38:34","problem_types":["CWE-125","CWE-125 CWE-125: Out-of-bounds Read"],"metrics":{"cvssMetricV31":[{"source":"secure@microsoft.com","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:*","matchCriteriaId":"3259EBFE-AE2D-48B8-BE9A-E22BBDB31378"},{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:*","matchCriteriaId":"CD25F492-9272-4836-832C-8439EBE64CCF"},{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:microsoft_365:-:*:*:*:*:macos:*:*","matchCriteriaId":"12418BDE-FA2E-4BBF-8E47-45C505399898"},{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:macos:-:*","matchCriteriaId":"0DB3EBBF-E0C4-4D5A-8D22-107463AD1DE4"},{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:macos:-:*","matchCriteriaId":"589B470B-9C2E-41E2-A44D-D8CCB4D2F933"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"45457","Ordinal":"1","Title":"Microsoft Word Remote Code Execution Vulnerability","CVE":"CVE-2026-45457","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"45457","Ordinal":"1","NoteData":"Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.","Type":"Description","Title":"Microsoft Word Remote Code Execution Vulnerability"}]}}}