CVE-2026-20962

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"cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*", "matchCriteriaId": "A74970A1-CC81-4482-B465-8382B1544EF3", "versionEndExcluding": "10.0.17763.8276", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*", "matchCriteriaId": "C4AA6991-DE34-48F6-AFD3-77CEE7FBB692", "versionEndExcluding": "10.0.20348.4648", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:x64:*", "matchCriteriaId": "9738ABD2-1692-4547-B4AF-8673D3F8129C", "versionEndExcluding": "10.0.25398.2092", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:*", "matchCriteriaId": "1BCFDBEF-B7E3-4DE8-BAAC-F648701F6947", "versionEndExcluding": "10.0.26100.32230", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Use of uninitialized resource in Dynamic Root of Trust for Measurement (DRTM) allows an authorized attacker to disclose information locally."}, {"lang": "es", "value": "Uso de recurso no inicializado en Dynamic Root of Trust for Measurement (DRTM) permite a un atacante autorizado divulgar informaci\u00f3n localmente."}], "id": "CVE-2026-20962", "lastModified": "2026-07-30T21:17:12.757", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 4.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 3.6, "source": "secure@microsoft.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-20962", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-01-13T19:41:32.139241Z", "version": "2.0.3"}}]}, "published": "2026-01-13T18:16:24.093", "references": [{"source": "secure@microsoft.com", "tags": ["Vendor Advisory"], "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20962"}], "sourceIdentifier": "secure@microsoft.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-908"}], "source": "secure@microsoft.com", "type": "Secondary"}]}

{}

{"analysis": {"en": {"generated_at": "2026-04-18T16:23:03.334061+00:00", "value": {"mitigation_remediation": ["Apply the Microsoft security update that contains a fix for CVE\u20112026\u201120962 on all affected Windows\u00a010, Windows\u00a011, and Windows\u00a0Server\u00a02019/2022/2025 systems.", "Restrict local user access to DRTM by enforcing least\u2011privilege principals and removing administrative rights that can invoke the affected component.", "If feasible, disable or limit DRTM functionality for local accounts through Group Policy or local security settings while the patch is pending."], "summary": {"action": "Apply Patch", "impact": "Local Information Disclosure"}, "threat_synthesis": {"affected_systems": "Microsoft Windows\u00a010 versions\u00a01809,\u00a021H2,\u00a022H2; Windows\u00a011 versions\u00a022H3,\u00a023H2,\u00a024H2,\u00a025H2; Windows\u00a0Server\u00a02019; Windows\u00a0Server\u00a02022 (including the 23H2 edition server core); and Windows\u00a0Server\u00a02025 (including server core). All listed editions are potentially affected unless a patch has been applied.", "description_and_impact": "The vulnerability arises from an uninitialized resource in the Dynamic Root of Trust for Measurement (DRTM) module, allowing authorized local users to read memory that was not intended for disclosure. This improper read of uninitialized memory is classified as CWE\u2011908 and results in leakage of confidential data to the attacker, but does not grant code execution or remote access.", "risk_and_exploitability": "The CVSS base score is\u00a04.4, reflecting moderate severity. The EPSS score is below\u00a01\u202f%, indicating a very low likelihood of exploitation at this time, and the vulnerability is not listed in the CISA KEV catalog. The attack vector is local, which is inferred from the description\u2019s reference to an authorized attacker and is not explicitly stated in the CVE record. Exploitation requires local access and the ability to interact with the DRTM subsystem, so the impact is limited to the capabilities of the attacking user."}}}}, "created": "2026-04-18T16:30:05.082897+00:00", "updated": "2026-04-18T16:30:05.082908+00:00", "vendors": []}