{"@odata.context":"https://api.msrc.microsoft.com/sug/v2.0/sugodata/v2.0/en-US/$metadata#vulnerability/$entity","id":"00000000-0000-0000-0000-000019c99236","releaseDate":"2026-02-10T08:00:00-08:00","cveNumber":"CVE-2026-21510","cveTitle":"Windows Shell Security Feature Bypass Vulnerability","releaseNumber":"2026-Feb","vulnType":"Security Vulnerability","latestRevisionDate":"2026-02-10T08:00:00-08:00","description":"<p>Protection mechanism failure in Windows Shell allows an unauthorized attacker to bypass a security feature over a network.</p>\n","cweList":["CWE-693: Protection Mechanism Failure"],"cweDetailsListForSearch":["cwe: CWE-693: Protection Mechanism Failure","cweUrl: https://cwe.mitre.org/data/definitions/693.html"],"unformattedDescription":"Protection mechanism failure in Windows Shell allows an unauthorized attacker to bypass a security feature over a network.","mitreText":"CVE-2026-21510","mitreUrl":"https://www.cve.org/CVERecord?id=CVE-2026-21510","publiclyDisclosed":"Yes","exploited":"Yes","latestSoftwareReleaseId":0,"latestSoftwareRelease":"Exploitation Detected","olderSoftwareReleaseId":0,"denialOfService":"N/A","tag":"Windows Shell","issuingCna":"Microsoft","issuingCnaId":100000001,"severityId":100000001,"severity":"Important","impactId":100000007,"impact":"Security Feature Bypass","langCode":"en-US","baseScore":"8.8","temporalScore":"8.2","vectorString":"CVSS:3.1/AV:N/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-693: Protection Mechanism Failure","https://cwe.mitre.org/data/definitions/693.html"]}],"articles":[{"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>To successfully exploit this vulnerability, an attacker must convince a user to open a malicious link or shortcut file.</p>\n","ordinal":10000},{"title":"Windows Shell Security Feature Bypass Vulnerability","articleType":"100000000","description":"<p>Protection mechanism failure in Windows Shell allows an unauthorized attacker to bypass a security feature over a network.</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>An attacker could bypass Windows SmartScreen and Windows Shell security prompts by exploiting improper handling in Windows Shell components, allowing attacker\u2011controlled content to execute without user warning or consent.</p>\n","ordinal":10000}],"revisions":[{"cveNumber":"CVE-2026-21510","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":"576c3548-44f6-f011-9399-000d3ac5fb71"}]}