CVE-2026-21262 - Vulnerability Details - OpenCVE

Improper access control in SQL Server allows an authorized attacker to elevate privileges over a network.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Vendors	Products
Microsoft Subscribe	Sql Server 2016 Subscribe Sql Server 2017 Subscribe Sql Server 2019 Subscribe Sql Server 2022 Subscribe Sql Server 2025 Subscribe

No data.

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21262

History

Tue, 10 Mar 2026 17:30:00 +0000

Type	Values Removed	Values Added
Description		Improper access control in SQL Server allows an authorized attacker to elevate privileges over a network.
Title		SQL Server Elevation of Privilege Vulnerability
First Time appeared		Microsoft Microsoft sql Server 2016 Microsoft sql Server 2017 Microsoft sql Server 2019 Microsoft sql Server 2022 Microsoft sql Server 2025
Weaknesses		CWE-284
CPEs		cpe:2.3:a:microsoft:sql_server_2016::sp3:::::x64: cpe:2.3:a:microsoft:sql_server_2017::-:::::x64: cpe:2.3:a:microsoft:sql_server_2019:::::::x64:* cpe:2.3:a:microsoft:sql_server_2022:::::::x64:* cpe:2.3:a:microsoft:sql_server_2025:::::::x64:*
Vendors & Products		Microsoft Microsoft sql Server 2016 Microsoft sql Server 2017 Microsoft sql Server 2019 Microsoft sql Server 2022 Microsoft sql Server 2025
References		https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21262
Metrics		cvssV3_1 `{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}`

Projects

Sign in to view the affected projects.

MITRE

Status: PUBLISHED

Assigner: microsoft

Published: 2026-03-10T17:04:32.361Z

Updated: 2026-03-10T18:46:58.850Z

Reserved: 2025-12-11T21:02:05.737Z

Link: CVE-2026-21262

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-03-10T18:18:06.190

Modified: 2026-03-10T18:18:06.190

Link: CVE-2026-21262

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-284

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-21262", "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "state": "PUBLISHED", "assignerShortName": "microsoft", "dateReserved": "2025-12-11T21:02:05.737Z", "datePublished": "2026-03-10T17:04:32.361Z", "dateUpdated": "2026-03-10T18:46:58.850Z"}, "containers": {"cna": {"title": "SQL Server Elevation of Privilege Vulnerability", "datePublic": "2026-03-10T14:00:00.000Z", "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:sql_server_2017:*:-:*:*:*:*:x64:*", "versionStartIncluding": "14.0.0", "versionEndExcluding": "14.0.2100.4"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:sql_server_2019:*:*:*:*:*:*:x64:*", "versionStartIncluding": "15.0.0", "versionEndExcluding": "16.0.1170.5"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:sql_server_2016:*:sp3:*:*:*:*:x64:*", "versionStartIncluding": "13.0.0", "versionEndExcluding": "13.0.6480.4"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:sql_server_2017:*:-:*:*:*:*:x64:*", "versionStartIncluding": "14.0.0", "versionEndExcluding": "14.0.3520.4"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:sql_server_2016:*:sp3:*:*:*:*:x64:*", "versionStartIncluding": "13.0.0", "versionEndExcluding": "13.0.7075.5"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:sql_server_2022:*:*:*:*:*:*:x64:*", "versionStartIncluding": "16.0.0", "versionEndExcluding": "16.0.1170.5"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:sql_server_2025:*:*:*:*:*:*:x64:*", "versionStartIncluding": "17.0.1050.2", "versionEndExcluding": "17.0.1105.2"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:sql_server_2019:*:*:*:*:*:*:x64:*", "versionStartIncluding": "15.0.0.0", "versionEndExcluding": "15.0.4460.4"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:sql_server_2022:*:*:*:*:*:*:x64:*", "versionStartIncluding": "16.0.0.0", "versionEndExcluding": "16.0.4240.4"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:sql_server_2025:*:*:*:*:*:*:x64:*", "versionStartIncluding": "17.0.0.0", "versionEndExcluding": "17.0.4020.2"}]}]}], "affected": [{"vendor": "Microsoft", "product": "Microsoft SQL Server 2016 Service Pack 3 (GDR)", "platforms": ["x64-based Systems"], "versions": [{"version": "13.0.0", "lessThan": "13.0.6480.4", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Microsoft SQL Server 2016 Service Pack 3 Azure Connect Feature Pack", "platforms": ["x64-based Systems"], "versions": [{"version": "13.0.0", "lessThan": "13.0.7075.5", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Microsoft SQL Server 2017 (CU 31)", "platforms": ["x64-based Systems"], "versions": [{"version": "14.0.0", "lessThan": "14.0.3520.4", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Microsoft SQL Server 2017 (GDR)", "platforms": ["x64-based Systems"], "versions": [{"version": "14.0.0", "lessThan": "14.0.2100.4", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Microsoft SQL Server 2019 (CU 32)", "platforms": ["x64-based Systems"], "versions": [{"version": "15.0.0.0", "lessThan": "15.0.4460.4", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Microsoft SQL Server 2019 (GDR)", "platforms": ["x64-based Systems"], "versions": [{"version": "15.0.0", "lessThan": "16.0.1170.5", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Microsoft SQL Server 2022 (GDR)", "platforms": ["x64-based Systems"], "versions": [{"version": "16.0.0", "lessThan": "16.0.1170.5", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Microsoft SQL Server 2022 for x64-based Systems (CU 23)", "platforms": ["x64-based Systems"], "versions": [{"version": "16.0.0.0", "lessThan": "16.0.4240.4", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Microsoft SQL Server 2025 (CU 2)", "platforms": ["x64-based Systems"], "versions": [{"version": "17.0.0.0", "lessThan": "17.0.4020.2", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Microsoft SQL Server 2025 for x64-based Systems (GDR)", "versions": [{"version": "17.0.1050.2", "lessThan": "17.0.1105.2", "versionType": "custom", "status": "affected"}]}], "descriptions": [{"value": "Improper access control in SQL Server allows an authorized attacker to elevate privileges over a network.", "lang": "en-US"}], "problemTypes": [{"descriptions": [{"description": "CWE-284: Improper Access Control", "lang": "en-US", "type": "CWE", "cweId": "CWE-284"}]}], "providerMetadata": {"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft", "dateUpdated": "2026-03-10T17:04:32.361Z"}, "references": [{"name": "SQL Server Elevation of Privilege Vulnerability", "tags": ["vendor-advisory", "patch"], "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21262"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en-US", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "baseSeverity": "HIGH", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C"}}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-03-10T18:40:14.366473Z", "id": "CVE-2026-21262", "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": "2026-03-10T18:46:58.850Z"}}]}}