{"@odata.context":"https://api.msrc.microsoft.com/sug/v2.0/sugodata/v2.0/en-US/$metadata#vulnerability/$entity","id":"00000000-0000-0000-0000-0000ed9d23da","releaseDate":"2026-10-13T07:00:00-07:00","cveNumber":"CVE-2026-96303","cveTitle":"Microsoft PowerShell Security Feature Bypass Vulnerability","releaseNumber":"2026-Oct","vulnType":"Security Vulnerability","latestRevisionDate":"2026-10-22T07:00:00-07:00","description":"<p>Improperly implemented security check for standard in Microsoft PowerShell allows an unauthorized attacker to bypass a security feature over a network.</p>\n","cweList":["CWE-358: Improperly Implemented Security Check for Standard"],"cweDetailsListForSearch":["cwe: CWE-358: Improperly Implemented Security Check for Standard","cweUrl: https://cwe.mitre.org/data/definitions/358.html"],"unformattedDescription":"<p>Improperly implemented security check for standard in Microsoft PowerShell allows an unauthorized attacker to bypass a security feature over a network.</p>","mitreText":"CVE-2026-96303","mitreUrl":"https://www.cve.org/CVERecord?id=CVE-2026-96303","publiclyDisclosed":"No","exploited":"No","latestSoftwareReleaseId":2,"latestSoftwareRelease":"Exploitation Less Likely","olderSoftwareReleaseId":0,"denialOfService":"N/A","tag":"Microsoft PowerShell","issuingCna":"Microsoft","issuingCnaId":100000001,"severityId":100000001,"severity":"Important","impactId":100000007,"impact":"Security Feature Bypass","langCode":"en-US","baseScore":"6.5","temporalScore":"5.7","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C","vectorStringSource":"Microsoft","isMariner":false,"customerActionRequired":true,"customerActionRequiredId":1,"cweDetailsList":[{"keys":["cwe","cweUrl"],"values":["CWE-358: Improperly Implemented Security Check for Standard","https://cwe.mitre.org/data/definitions/358.html"]}],"articles":[{"title":"Microsoft PowerShell Security Feature Bypass Vulnerability","articleType":"100000000","description":"<p>Improperly implemented security check for standard in Microsoft PowerShell 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 who successfully exploited this vulnerability could bypass Windows Defender Application Control and PowerShell Constrained Language Mode restrictions, allowing untrusted code to run with capabilities those protections are designed to block.</p>\n","ordinal":10000}],"revisions":[{"cveNumber":"CVE-2026-96303","version":1,"revisionDate":"2026-10-13T07:00:00-07:00","initialDate":"0001-01-01T00:00:00Z","description":"<p>Information published.</p>\n","unformattedDescription":"Information published.","notificationNeeded":false,"notificationSent":false,"sourceId":"4197b568-8db7-f111-93fe-000d3afbc7d7"},{"cveNumber":"CVE-2026-96303","version":1.1,"revisionDate":"2026-10-22T07:00:00-07:00","initialDate":"0001-01-01T00:00:00Z","description":"<p>Corrected Fixed Build Number and Download links in the Security Updates table. This is an informational change only.</p>\n","unformattedDescription":"Corrected Fixed Build Number and Download links in the Security Updates table. This is an informational change only.","notificationNeeded":false,"notificationSent":false,"sourceId":"afc569d5-64ce-f111-a059-00224803da89"}]}