CVE-2026-73029

Buffer over-read in SQL Server allows an authorized attacker to disclose information over a network.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-73029	Vendor Advisory Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:microsoft:sql_server_2019:::::::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_2022:::::::x64:*
	cpe:2.3:a:microsoft:sql_server_2025:::::::x64:*
	cpe:2.3:a:microsoft:sql_server_2025:::::::x64:*

History

No history.

Information

Published : 2026-09-08 18:20

Updated : 2026-09-15 16:11

NVD link : CVE-2026-73029

Mitre link : CVE-2026-73029

CVE.ORG link : CVE-2026-73029

JSON object : View

Products Affected

microsoft

sql_server_2022
sql_server_2025
sql_server_2019

CWE

CWE-126

Buffer Over-read

{"id": "CVE-2026-73029", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-73029", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-08T19:49:21.841430Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "secure@microsoft.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "affected": [{"source": "secure@microsoft.com", "affectedData": [{"vendor": "Microsoft", "product": "Microsoft SQL Server 2019 (CU 32)", "versions": [{"status": "affected", "version": "15.0.0.0", "lessThan": "15.0.4490.9", "versionType": "custom"}], "platforms": ["x64-based Systems"]}, {"vendor": "Microsoft", "product": "Microsoft SQL Server 2019 (GDR)", "versions": [{"status": "affected", "version": "15.0.0", "lessThan": "15.0.2190.7", "versionType": "custom"}], "platforms": ["x64-based Systems"]}, {"vendor": "Microsoft", "product": "Microsoft SQL Server 2022 (CU 26)", "versions": [{"status": "affected", "version": "16.0.0.0", "lessThan": "16.0.4275.2", "versionType": "custom"}], "platforms": ["x64-based Systems"]}, {"vendor": "Microsoft", "product": "Microsoft SQL Server 2022 (GDR)", "versions": [{"status": "affected", "version": "16.0.0", "lessThan": "16.0.1200.5", "versionType": "custom"}], "platforms": ["x64-based Systems"]}, {"vendor": "Microsoft", "product": "Microsoft SQL Server 2025 (CU8)", "versions": [{"status": "affected", "version": "17.0.0.0", "lessThan": "17.0.4085.5", "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": "17.0.1135.8", "versionType": "custom"}], "platforms": ["x64-based Systems"]}]}], "published": "2026-09-08T18:20:32.987", "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-73029", "tags": ["Vendor Advisory", "Patch"], "source": "secure@microsoft.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "secure@microsoft.com", "description": [{"lang": "en", "value": "CWE-126"}]}], "descriptions": [{"lang": "en", "value": "Buffer over-read in SQL Server allows an authorized attacker to disclose information over a network."}], "lastModified": "2026-09-15T16:11:20.427", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:sql_server_2019:*:*:*:*:*:*:x64:*", "vulnerable": true, "matchCriteriaId": "799073C2-2213-4F34-8F07-D6C10AC00578", "versionEndExcluding": "15.0.2190.7"}, {"criteria": "cpe:2.3:a:microsoft:sql_server_2019:*:*:*:*:*:*:x64:*", "vulnerable": true, "matchCriteriaId": "5517BD13-C554-4318-8D4F-FBCC90A628DB", "versionEndExcluding": "15.0.4490.9", "versionStartIncluding": "15.0.4003.23"}, {"criteria": "cpe:2.3:a:microsoft:sql_server_2022:*:*:*:*:*:*:x64:*", "vulnerable": true, "matchCriteriaId": "21EA6405-BD37-4487-85FD-1B9CCCCF93F0", "versionEndExcluding": "16.0.1200.5"}, {"criteria": "cpe:2.3:a:microsoft:sql_server_2022:*:*:*:*:*:*:x64:*", "vulnerable": true, "matchCriteriaId": "C76C3735-9E01-4F1A-98D3-29B9072C69D2", "versionEndExcluding": "16.0.4275.2", "versionStartIncluding": "16.0.4003.1"}, {"criteria": "cpe:2.3:a:microsoft:sql_server_2025:*:*:*:*:*:*:x64:*", "vulnerable": true, "matchCriteriaId": "4117EB69-994D-4A8D-85EC-5AC12DF66DBD", "versionEndExcluding": "17.0.1135.8"}, {"criteria": "cpe:2.3:a:microsoft:sql_server_2025:*:*:*:*:*:*:x64:*", "vulnerable": true, "matchCriteriaId": "1408DECC-BC22-4F27-8C49-C608FBF27FED", "versionEndExcluding": "17.0.4085.5", "versionStartIncluding": "17.0.4006.2"}], "operator": "OR"}]}], "sourceIdentifier": "secure@microsoft.com"}