CVE-2026-27928

{"id": "CVE-2026-27928", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "secure@microsoft.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.7, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.8, "exploitabilityScore": 2.2}]}, "published": "2026-04-14T18:17:04.170", "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27928", "tags": ["Vendor Advisory"], "source": "secure@microsoft.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "secure@microsoft.com", "description": [{"lang": "en", "value": "CWE-20"}]}], "descriptions": [{"lang": "en", "value": "Improper input validation in Windows Hello allows an unauthorized attacker to bypass a security feature over a network."}], "lastModified": "2026-04-22T17:36:40.780", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "982DB0CA-5196-4E42-B2F7-994BE8179715", "versionEndExcluding": "10.0.14393.9060"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "647CF9B5-8898-469B-9C09-D372A7843187", "versionEndExcluding": "10.0.17763.8644"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DC6837B7-5DFD-4AF7-B436-3C6FEF48BA60", "versionEndExcluding": "10.0.20348.5020"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "55A1F3AB-5299-4495-9A73-FDA23C6FD88D", "versionEndExcluding": "10.0.25398.2274"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "ADF41A14-B9DA-4788-82A8-74DCDCD090E1", "versionEndExcluding": "10.0.26100.32690"}], "operator": "OR"}]}], "sourceIdentifier": "secure@microsoft.com"}