{"@odata.context":"https://api.msrc.microsoft.com/sug/v2.0/sugodata/v2.0/en-US/$metadata#vulnerability/$entity","id":"00000000-0000-0000-0000-00006ec50a27","releaseDate":"2026-08-11T07:00:00-07:00","cveNumber":"CVE-2026-62871","cveTitle":".NET Elevation of Privilege Vulnerability","releaseNumber":"2026-Aug","vulnType":"Security Vulnerability","latestRevisionDate":"2026-09-21T07:00:00-07:00","description":"<p>Out-of-bounds write in .NET allows an unauthorized attacker to execute code locally.</p>\n","cweList":["CWE-787: Out-of-bounds Write","CWE-122: Heap-based Buffer Overflow"],"cweDetailsListForSearch":["cwe: CWE-787: Out-of-bounds Write","cweUrl: https://cwe.mitre.org/data/definitions/787.html","cwe: CWE-122: Heap-based Buffer Overflow","cweUrl: https://cwe.mitre.org/data/definitions/122.html"],"unformattedDescription":"Out-of-bounds write in .NET allows an unauthorized attacker to execute code locally.","mitreText":"CVE-2026-62871","mitreUrl":"https://www.cve.org/CVERecord?id=CVE-2026-62871","publiclyDisclosed":"No","exploited":"No","latestSoftwareReleaseId":2,"latestSoftwareRelease":"Exploitation Less Likely","olderSoftwareReleaseId":0,"denialOfService":"N/A","tag":".NET","issuingCna":"Microsoft","issuingCnaId":100000001,"severityId":100000001,"severity":"Important","impactId":100000005,"impact":"Remote Code Execution","langCode":"en-US","baseScore":"7.8","temporalScore":"6.8","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","vectorStringSource":"Microsoft","isMariner":false,"customerActionRequired":true,"customerActionRequiredId":1,"cweDetailsList":[{"keys":["cwe","cweUrl"],"values":["CWE-787: Out-of-bounds Write","https://cwe.mitre.org/data/definitions/787.html"]},{"keys":["cwe","cweUrl"],"values":["CWE-122: Heap-based Buffer Overflow","https://cwe.mitre.org/data/definitions/122.html"]}],"articles":[{"articleType":"FAQ","description":"<p><strong>What privileges could be gained by an attacker who successfully exploited this vulnerability?</strong></p>\n<p>An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.</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>Exploitation of this vulnerability requires that a user trigger the payload in the application.</p>\n","ordinal":10000},{"title":".NET Remote Code Execution Vulnerability","articleType":"100000000","description":"<p>Out-of-bounds write in .NET allows an unauthorized attacker to execute code locally.</p>\n","ordinal":10000}],"revisions":[{"cveNumber":"CVE-2026-62871","version":2,"revisionDate":"2026-08-13T07:00:00-07:00","initialDate":"0001-01-01T00:00:00Z","description":"<p>Removed Linux and macOS products from the Affected Software table. This is an informational change only.</p>\n","unformattedDescription":"Removed Linux and macOS products from the Affected Software table. This is an informational change only.","notificationNeeded":false,"notificationSent":false,"sourceId":"6be04b9b-3697-f111-93a1-000d3ac5fb71"},{"cveNumber":"CVE-2026-62871","version":2.1,"revisionDate":"2026-09-21T07:00:00-07:00","initialDate":"0001-01-01T00:00:00Z","description":"<p>Updated an acknowledgement. This is an informational change only.</p>\n","unformattedDescription":"Updated an acknowledgement. This is an informational change only.","notificationNeeded":false,"notificationSent":false,"sourceId":"819bef45-c8b5-f111-93a1-000d3ac5fb71"},{"cveNumber":"CVE-2026-62871","version":1,"revisionDate":"2026-08-11T07:00:00-07:00","initialDate":"0001-01-01T00:00:00Z","description":"<p>Information published.</p>\n","unformattedDescription":"Information published.","notificationNeeded":false,"notificationSent":false,"sourceId":"2a33b4f6-6d81-f111-93fe-000d3afbc7d7"}]}