{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-20803", "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "state": "PUBLISHED", "assignerShortName": "microsoft", "dateReserved": "2025-12-03T05:54:20.370Z", "datePublished": "2026-01-13T17:56:06.184Z", "dateUpdated": "2026-01-30T03:38:56.276Z"}, "containers": {"cna": {"title": "Microsoft SQL Server Elevation of Privilege Vulnerability", "datePublic": "2026-01-13T08:00:00.000Z", "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:sql_server_2022:*:*:*:*:*:*:x64:*", "versionStartIncluding": "16.0.0", "versionEndExcluding": "16.0.1165.1"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:sql_server_2025:*:*:*:*:*:*:x64:*", "versionStartIncluding": "17.0.1050.2", "versionEndExcluding": "17.0.1050.2"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:sql_server_2022:*:*:*:*:*:*:x64:*", "versionStartIncluding": "16.0.0.0", "versionEndExcluding": "16.0.4230.2"}]}]}], "affected": [{"vendor": "Microsoft", "product": "Microsoft SQL Server 2022 (GDR)", "platforms": ["x64-based Systems"], "versions": [{"version": "16.0.0", "lessThan": "16.0.1165.1", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Microsoft SQL Server 2025 for x64-based Systems (GDR)", "versions": [{"version": "17.0.1050.2", "lessThan": "17.0.1050.2", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Microsoft SQL Server 2022 for x64-based Systems (CU 22)", "versions": [{"version": "16.0.0.0", "lessThan": "16.0.4230.2", "versionType": "custom", "status": "affected"}]}], "descriptions": [{"value": "Missing authentication for critical function in SQL Server allows an authorized attacker to elevate privileges over a network.", "lang": "en-US"}], "problemTypes": [{"descriptions": [{"description": "CWE-306: Missing Authentication for Critical Function", "lang": "en-US", "type": "CWE", "cweId": "CWE-306"}]}], "providerMetadata": {"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft", "dateUpdated": "2026-01-30T03:38:56.276Z"}, "references": [{"name": "Microsoft SQL Server Elevation of Privilege Vulnerability", "tags": ["vendor-advisory", "patch"], "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20803"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en-US", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "baseSeverity": "HIGH", "baseScore": 7.2, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C"}}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-01-14T04:56:58.655928Z", "id": "CVE-2026-20803", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-14T19:28:47.227Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-20803", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-01-14T04:56:58.655928Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-13T19:41:13.468Z"}}], "cna": {"title": "Microsoft SQL Server Elevation of Privilege Vulnerability", "metrics": [{"format": "CVSS", "cvssV3_1": {"version": "3.1", "baseScore": 7.2, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C"}, "scenarios": [{"lang": "en-US", "value": "GENERAL"}]}], "affected": [{"vendor": "Microsoft", "product": "Microsoft SQL Server 2022 (GDR)", "versions": [{"status": "affected", "version": "16.0.0", "lessThan": "16.0.1165.1", "versionType": "custom"}], "platforms": ["x64-based Systems"]}, {"vendor": "Microsoft", "product": "Microsoft SQL Server 2025 for x64-based Systems (GDR)", "versions": [{"status": "affected", "version": "17.0.1050.2", "lessThan": "17.0.1050.2", "versionType": "custom"}]}, {"vendor": "Microsoft", "product": "Microsoft SQL Server 2022 for x64-based Systems (CU 22)", "versions": [{"status": "affected", "version": "16.0.0.0", "lessThan": "16.0.4230.2", "versionType": "custom"}]}], "datePublic": "2026-01-13T08:00:00.000Z", "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20803", "name": "Microsoft SQL Server Elevation of Privilege Vulnerability", "tags": ["vendor-advisory", "patch"]}], "descriptions": [{"lang": "en-US", "value": "Missing authentication for critical function in SQL Server allows an authorized attacker to elevate privileges over a network."}], "problemTypes": [{"descriptions": [{"lang": "en-US", "type": "CWE", "cweId": "CWE-306", "description": "CWE-306: Missing Authentication for Critical Function"}]}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:sql_server_2022:*:*:*:*:*:*:x64:*", "vulnerable": true, "versionEndExcluding": "16.0.1165.1", "versionStartIncluding": "16.0.0"}, {"criteria": "cpe:2.3:a:microsoft:sql_server_2025:*:*:*:*:*:*:x64:*", "vulnerable": true, "versionEndExcluding": "17.0.1050.2", "versionStartIncluding": "17.0.1050.2"}, {"criteria": "cpe:2.3:a:microsoft:sql_server_2022:*:*:*:*:*:*:x64:*", "vulnerable": true, "versionEndExcluding": "16.0.4230.2", "versionStartIncluding": "16.0.0.0"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft", "dateUpdated": "2026-01-30T03:38:56.276Z"}}}, "cveMetadata": {"cveId": "CVE-2026-20803", "state": "PUBLISHED", "dateUpdated": "2026-01-30T03:38:56.276Z", "dateReserved": "2025-12-03T05:54:20.370Z", "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "datePublished": "2026-01-13T17:56:06.184Z", "assignerShortName": "microsoft"}, "dataVersion": "5.2"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:sql_server_2022:*:*:*:*:*:*:x64:*", "matchCriteriaId": "571B6885-6FD3-4E3F-A22A-583A0029F20A", "versionEndExcluding": "16.0.1165.1", "versionStartIncluding": "16.0.1000.6", "vulnerable": true}, {"criteria": "cpe:2.3:a:microsoft:sql_server_2022:*:*:*:*:*:*:x64:*", "matchCriteriaId": "B984CC39-AE9C-4F8E-B316-94EFF9462148", "versionEndExcluding": "16.0.4230.2", "versionStartIncluding": "16.0.4003.1", "vulnerable": true}, {"criteria": "cpe:2.3:a:microsoft:sql_server_2025:17.0.1000.7:*:*:*:*:*:x64:*", "matchCriteriaId": "E722BA1A-A8E8-486E-8D8E-6F9B7DD2B556", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Missing authentication for critical function in SQL Server allows an authorized attacker to elevate privileges over a network."}], "id": "CVE-2026-20803", "lastModified": "2026-01-16T14:35:02.720", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.2, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 5.9, "source": "secure@microsoft.com", "type": "Primary"}]}, "published": "2026-01-13T18:16:06.630", "references": [{"source": "secure@microsoft.com", "tags": ["Vendor Advisory"], "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20803"}], "sourceIdentifier": "secure@microsoft.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-306"}], "source": "secure@microsoft.com", "type": "Primary"}]}

{}

{}