CVE-2026-77484 - Vulnerability Details - OpenCVE

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

Exploitation none

Automatable no

Technical Impact total

Vendors	Products
Microsoft	Sql Server 2019 Sql Server 2022 Sql Server 2025

No data.

No data.

References

Link	Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77484

History

Wed, 09 Sep 2026 11:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Tue, 08 Sep 2026 17:30:00 +0000

Type	Values Removed	Values Added
Description		Deserialization of untrusted data in SQL Server allows an authorized attacker to execute code over a network.
Title		Microsoft SQL Server Remote Code Execution Vulnerability
First Time appeared		Microsoft Microsoft sql Server 2019 Microsoft sql Server 2022 Microsoft sql Server 2025
Weaknesses		CWE-502
CPEs		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 2019 Microsoft sql Server 2022 Microsoft sql Server 2025
References		https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77484
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'}`

MITRE

Status: PUBLISHED

Assigner: microsoft

Published: 2026-09-08T17:18:13.746Z

Updated: 2026-09-09T21:35:14.015Z

Reserved: 2026-08-20T20:11:33.672Z

Link: CVE-2026-77484

Vulnrichment

Updated: 2026-09-09T09:53:42.766Z

NVD

Status : Awaiting Analysis

Published: 2026-09-08T18:20:34.023

Modified: 2026-09-09T10:21:27.497

Link: CVE-2026-77484

Redhat

No data.

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