CVE-2026-54118

Deserialization of untrusted data in SQL Server allows an authorized attacker to execute code over a network.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54118	Vendor Advisory Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:microsoft:sql_server_2016:::::::x64:*
	cpe:2.3:a:microsoft:sql_server_2016:::::::x64:*
	cpe:2.3:a:microsoft:sql_server_2017:::::::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_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

22 Jul 2026, 16:49

Type	Values Removed	Values Added
First Time		Microsoft sql Server 2022 Microsoft sql Server 2025 Microsoft sql Server 2016 Microsoft sql Server 2019 Microsoft Microsoft sql Server 2017
References	~~() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54118 -~~	() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54118 - Vendor Advisory, Patch
CPE		cpe:2.3:a:microsoft:sql_server_2022:::::::x64:* cpe:2.3:a:microsoft:sql_server_2019:::::::x64:* cpe:2.3:a:microsoft:sql_server_2025:::::::x64:* cpe:2.3:a:microsoft:sql_server_2017:::::::x64:* cpe:2.3:a:microsoft:sql_server_2016:::::::x64:*

14 Jul 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-14 17:17

Updated : 2026-07-22 16:49

NVD link : CVE-2026-54118

Mitre link : CVE-2026-54118

CVE.ORG link : CVE-2026-54118

JSON object : View

Products Affected

microsoft

sql_server_2016
sql_server_2022
sql_server_2019
sql_server_2025
sql_server_2017

CWE

CWE-502

Deserialization of Untrusted Data

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"platforms": ["x64-based Systems"]}, {"vendor": "Microsoft", "product": "Microsoft SQL Server 2019 (GDR)", "versions": [{"status": "affected", "version": "15.0.0", "lessThan": "15.0.2180.2", "versionType": "custom"}], "platforms": ["x64-based Systems"]}, {"vendor": "Microsoft", "product": "Microsoft SQL Server 2022 (GDR)", "versions": [{"status": "affected", "version": "16.0.0", "lessThan": "16.0.1190.2", "versionType": "custom"}], "platforms": ["x64-based Systems"]}, {"vendor": "Microsoft", "product": "Microsoft SQL Server 2022 for x64-based Systems (CU 25)", "versions": [{"status": "affected", "version": "16.0.4260.1", "lessThan": "16.0.4262.2", "versionType": "custom"}]}, {"vendor": "Microsoft", "product": "Microsoft SQL Server 2025 (CU 6)", "versions": [{"status": "affected", "version": "17.0.4060.2", "lessThan": "17.0.4060.2", "versionType": "custom"}]}, {"vendor": "Microsoft", "product": "Microsoft SQL Server 2025 for x64-based Systems (GDR)", "versions": [{"status": "affected", 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