CVE-2026-85888

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Out-of-Bounds Read in Microsoft SQL Server

Publication date: 2026-10-13

Last updated on: 2026-10-15

Assigner: Microsoft Corporation

Description

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

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-10-13

Last Modified

2026-10-15

Generated

2026-10-19

AI Q&A

2026-10-14

EPSS Evaluated

2026-10-18

NVD

CVE-2026-85888

Affected Vendors & Products

Vendor	Product	Version / Range
Microsoft	Microsoft	SQL Server 2017 (GDR) 14.0.0
Microsoft	Microsoft	SQL Server 2017 for x64-based Systems (CU31) 14.0.3006.16
Microsoft	Microsoft	SQL Server 2019 (GDR) 15.0.0
Microsoft	Microsoft	SQL Server 2019 for x64-based Systems (CU32) 15.0.4003.23
Microsoft	Microsoft	SQL Server 2022 (GDR) 16.0.0
Microsoft	Microsoft	SQL Server 2022 for x64-based Systems (CU27) 16.0.4003.1
Microsoft	Microsoft	SQL Server 2025 for x64-based Systems (CU9) 17.0.4006.2
Microsoft	Microsoft	SQL Server 2025 for x64-based Systems (GDR) 17.0.1050.2

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-125	The product reads data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This is an out-of-bounds read vulnerability in Microsoft SQL Server. An authorized attacker can exploit it to read memory outside the intended buffer over a network. This may lead to unauthorized information disclosure.

Impact Analysis

An attacker could exploit this to access sensitive data stored in memory, such as credentials or personal information. This could result in data breaches or unauthorized access to systems using the affected SQL Server versions.

Compliance Impact

This vulnerability could lead to unauthorized data exposure, violating GDPR's data protection principles or HIPAA's security requirements. Organizations using affected SQL Server versions may face compliance violations and potential penalties.

Mitigation Strategies

Apply the latest cumulative update or security update for your SQL Server version to patch the out-of-bounds read vulnerability. Monitor Microsoft's security advisories for updates and ensure unauthorized network access is restricted.

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