{"@odata.context":"https://api.msrc.microsoft.com/sug/v2.0/sugodata/v2.0/en-US/$metadata#vulnerability/$entity","id":"00000000-0000-0000-0000-0000859b30c1","releaseDate":"2026-02-10T08:00:00-08:00","cveNumber":"CVE-2026-21514","cveTitle":"Microsoft Word Security Feature Bypass Vulnerability","releaseNumber":"2026-Feb","vulnType":"Security Vulnerability","latestRevisionDate":"2026-02-10T08:00:00-08:00","description":"<p>Reliance on untrusted inputs in a security decision in Microsoft Office Word allows an unauthorized attacker to bypass a security feature locally.</p>\n","cweList":["CWE-807: Reliance on Untrusted Inputs in a Security Decision"],"cweDetailsListForSearch":["cwe: CWE-807: Reliance on Untrusted Inputs in a Security Decision","cweUrl: https://cwe.mitre.org/data/definitions/807.html"],"unformattedDescription":"Reliance on untrusted inputs in a security decision in Microsoft Office Word allows an unauthorized attacker to bypass a security feature locally.","mitreText":"CVE-2026-21514","mitreUrl":"https://www.cve.org/CVERecord?id=CVE-2026-21514","publiclyDisclosed":"Yes","exploited":"Yes","latestSoftwareReleaseId":0,"latestSoftwareRelease":"Exploitation Detected","olderSoftwareReleaseId":0,"denialOfService":"N/A","tag":"Microsoft Office Word","issuingCna":"Microsoft","issuingCnaId":100000001,"severityId":100000001,"severity":"Important","impactId":100000007,"impact":"Security Feature Bypass","langCode":"en-US","baseScore":"7.8","temporalScore":"7.2","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C","vectorStringSource":"Microsoft","isMariner":false,"customerActionRequired":true,"customerActionRequiredId":1,"cweDetailsList":[{"keys":["cwe","cweUrl"],"values":["CWE-807: Reliance on Untrusted Inputs in a Security Decision","https://cwe.mitre.org/data/definitions/807.html"]}],"articles":[{"title":"Microsoft Office Word Security Feature Bypass Vulnerability","articleType":"100000000","description":"<p>Reliance on untrusted inputs in a security decision in Microsoft Office Word allows an unauthorized attacker to bypass a security feature locally.</p>\n","ordinal":10000},{"articleType":"FAQ","description":"<p><strong>According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?</strong></p>\n<p>An attacker must send a user a malicious Office file and convince them to open it.</p>\n","ordinal":10000},{"articleType":"FAQ","description":"<p><strong>What kind of security feature could be bypassed by successfully exploiting this vulnerability?</strong></p>\n<p>This update addresses a vulnerability that bypasses OLE mitigations in Microsoft 365 and Microsoft Office which protect users from vulnerable COM/OLE controls.</p>\n","ordinal":10000},{"articleType":"FAQ","description":"<p><strong>Is the Preview Pane an attack vector for this vulnerability?</strong></p>\n<p>No, the Preview Pane is not an attack vector.</p>\n","ordinal":10000}],"revisions":[{"cveNumber":"CVE-2026-21514","version":1,"revisionDate":"2026-02-10T08:00:00-08:00","initialDate":"0001-01-01T00:00:00Z","description":"<p>Information published.</p>\n","unformattedDescription":"Information published.","notificationNeeded":false,"notificationSent":false,"sourceId":"4c5aa209-10f7-f011-93f7-000d3afbc7d7"}]}