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"affected", "versions": {"scheme": "generic", "value": "[10.0.25398.0,10.0.25398.2274)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Windows Server 2022, 23H2 Edition (Server Core installation)", "source": "cna", "vendor": "Microsoft"}, "product": "windows_server_2022,_23h2_edition_(server_core_installation)", "vendor": "microsoft"}, {"configurations": [{"platform": ["x64-based_systems"], "status": "affected", "versions": {"scheme": "generic", "value": "[10.0.26100.0,10.0.26100.32690)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Windows Server 2025", "source": "cna", "vendor": "Microsoft"}, "product": "windows_server_2025", "vendor": "microsoft"}, {"configurations": [{"platform": ["x64-based_systems"], "status": "affected", "versions": {"scheme": "generic", "value": "[10.0.26100.0,10.0.26100.32690)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Windows Server 2025 (Server Core installation)", "source": "cna", "vendor": "Microsoft"}, "product": "windows_server_2025_(server_core_installation)", "vendor": "microsoft"}], "analysis": {"en": {"generated_at": "2026-04-14T20:38:54.272973+00:00", "value": {"mitigation_remediation": ["Apply the Microsoft security update for CVE-2026-32088 via the Microsoft Security Update Guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32088.", "Confirm that all affected Windows\u202f10, Windows\u202f11, and Windows Server deployments are running the latest cumulative updates.", "Restrict physical access to devices with biometric hardware and enforce device security policies to prevent unauthorized concurrent use.", "Monitor authentication and event logs for suspicious biometric activity, such as repeated or concurrent attempts, and investigate promptly.", "Keep abreast of any additional advisories or patches from Microsoft regarding this vulnerability."], "summary": {"action": "Patch Immediately", "impact": "Unauthorized access via security feature bypass"}, "threat_synthesis": {"affected_systems": "The vulnerability is present in Microsoft Windows operating systems and affects the following releases: Windows\u202f10 version\u202f1809,\u202f21H2,\u202f22H2; Windows\u202f11 version\u202f23H2,\u202f24H2,\u202f25H2,\u202f26H1,\u202f22H3; and Windows Server releases\u202f2019,\u202f2022,\u202f2025,\u202fand the 23H2 edition, both full and Server\u202fCore installations.", "description_and_impact": "A race condition exists in the Windows Biometric Service that allows an attacker to perform concurrent operations on a shared resource. By exploiting this improper synchronization, an attacker with physical access to the device can bypass the configured security checks and cause the system to accept biometric data without proper authentication. This flaw enables an unauthorized user to gain access to the affected machine, potentially elevating privileges or accessing protected information.", "risk_and_exploitability": "The CVSS base score of 6.1 indicates moderate severity. No EPSS score is available, and the flaw is not listed in the CISA KEV catalog, yet exploitation requires direct, physical presence on the target device. An attacker can trigger the race condition by submitting multiple biometric requests simultaneously, thereby bypassing authentication checks. The overall risk is moderate, but the possibility of gaining unauthorized access justifies prompt remediation."}}}}, "created": "2026-04-15T14:45:03.392426+00:00", "updated": "2026-04-15T15:15:06.501858+00:00", "vendors": ["microsoft", "microsoft$PRODUCT$windows_10_1809", "microsoft$PRODUCT$windows_10_21h2", "microsoft$PRODUCT$windows_10_22h2", "microsoft$PRODUCT$windows_11_22h3", "microsoft$PRODUCT$windows_11_23h2", "microsoft$PRODUCT$windows_11_24h2", "microsoft$PRODUCT$windows_11_25h2", "microsoft$PRODUCT$windows_11_26h1", "microsoft$PRODUCT$windows_server_2019", "microsoft$PRODUCT$windows_server_2019_(server_core_installation)", "microsoft$PRODUCT$windows_server_2022", "microsoft$PRODUCT$windows_server_2022,_23h2_edition_(server_core_installation)", "microsoft$PRODUCT$windows_server_2025", "microsoft$PRODUCT$windows_server_2025_(server_core_installation)"]}