Microsoft Sql Server 2017 (cu 31) CVEs and Security Vulnerabilities

CVE-2026-67639

Microsoft SQL Server Remote Code Execution Vulnerability

Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Microsoft Sql Server 2017 (cu 31) Microsoft Sql Server 2017 (gdr) Microsoft Sql Server 2019 (cu 32) and 8 more

CVE-2026-67390

Microsoft SQL Server Information Disclosure Vulnerability

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

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Microsoft Sql Server 2017 (cu 31) Microsoft Sql Server 2017 (gdr) Microsoft Sql Server 2019 (cu 32) and 9 more

CVE-2026-73028

SQL Server Elevation of Privilege Vulnerability

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

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Microsoft Sql Server 2017 (cu 31) Microsoft Sql Server 2017 (gdr) Microsoft Sql Server 2019 (cu 32) and 9 more

CVE-2026-77480

SQL Server Elevation of Privilege Vulnerability

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

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Microsoft Sql Server 2017 (cu 31) Microsoft Sql Server 2017 (gdr) Microsoft Sql Server 2019 (cu 32) and 8 more

CVE-2026-77482

Microsoft SQL Server Remote Code Execution Vulnerability

Heap-based buffer overflow in SQL Server allows an unauthorized attacker to execute code over a network.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Microsoft Sql Server 2017 (cu 31) Microsoft Sql Server 2017 (gdr) Microsoft Sql Server 2019 (cu 32) and 3 more

CVE-2026-77483

SQL Server Elevation of Privilege Vulnerability

Weak authentication in SQL Server allows an authorized attacker to elevate privileges over a network.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Microsoft Sql Server 2017 (cu 31) Microsoft Sql Server 2017 (gdr) Microsoft Sql Server 2019 (cu 32) and 8 more

CVE-2026-77487

SQL Server Elevation of Privilege Vulnerability

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

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Microsoft Sql Server 2017 (cu 31) Microsoft Sql Server 2017 (gdr) Microsoft Sql Server 2019 (cu 32) and 8 more

CVE-2026-77488

Microsoft SQL Server Information Disclosure Vulnerability

Integer underflow (wrap or wraparound) in SQL Server allows an authorized attacker to disclose information locally.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Microsoft Sql Server 2017 (cu 31) Microsoft Sql Server 2017 (gdr) Microsoft Sql Server 2019 (cu 32) and 9 more

CVE-2026-77481

Microsoft SQL Server Remote Code Execution Vulnerability

Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Microsoft Sql Server 2017 (cu 31) Microsoft Sql Server 2017 (gdr) Microsoft Sql Server 2019 (cu 32) and 9 more

CVE-2026-54118

Microsoft SQL Server Remote Code Execution Vulnerability

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

CVSS 3.1 · 9.8 Critical EPSS 1.5% KEV · Not listed

Vendors

Microsoft

Products

Microsoft Sql Server 2016 Service Pack 3 (gdr) Microsoft Sql Server 2016 Service Pack 3 Azure Connect Feature Pack Microsoft Sql Server 2017 (cu 31) and 12 more

CVE-2026-47295

Microsoft SQL Server Elevation of Privilege Vulnerability

Improper neutralization of special elements used in an sql command ('sql injection') in SQL Server allows an authorized attacker to elevate privileges over a network.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Microsoft Sql Server 2016 Service Pack 3 (gdr) Microsoft Sql Server 2016 Service Pack 3 Azure Connect Feature Pack Microsoft Sql Server 2017 (cu 31) and 12 more

CVE-2026-55002

Microsoft SQL Server Elevation of Privilege Vulnerability

External control of file name or path in SQL Server allows an authorized attacker to elevate privileges over a network.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Microsoft Sql Server 2016 Service Pack 3 (gdr) Microsoft Sql Server 2016 Service Pack 3 Azure Connect Feature Pack Microsoft Sql Server 2017 (cu 31) and 12 more

CVE-2026-26115

SQL Server Elevation of Privilege Vulnerability

Improper validation of specified type of input in SQL Server allows an authorized attacker to elevate privileges over a network.

CVSS 3.1 · 8.8 High EPSS 1.2% KEV · Not listed

Vendors

Microsoft

Products

Microsoft Sql Server 2016 Service Pack 3 (gdr) Microsoft Sql Server 2016 Service Pack 3 Azure Connect Feature Pack Microsoft Sql Server 2017 (cu 31) and 12 more

CVE-2026-21262

SQL Server Elevation of Privilege Vulnerability

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

CVSS 3.1 · 8.8 High EPSS 1.7% KEV · Not listed

Vendors

Microsoft

Products

Microsoft Sql Server 2016 Service Pack 3 (gdr) Microsoft Sql Server 2016 Service Pack 3 Azure Connect Feature Pack Microsoft Sql Server 2017 (cu 31) and 12 more

Search vulnerabilities

Microsoft SQL Server Remote Code Execution Vulnerability

Microsoft SQL Server Information Disclosure Vulnerability

SQL Server Elevation of Privilege Vulnerability

SQL Server Elevation of Privilege Vulnerability

Microsoft SQL Server Remote Code Execution Vulnerability

SQL Server Elevation of Privilege Vulnerability

SQL Server Elevation of Privilege Vulnerability

Microsoft SQL Server Information Disclosure Vulnerability

Microsoft SQL Server Remote Code Execution Vulnerability

Microsoft SQL Server Remote Code Execution Vulnerability

Microsoft SQL Server Elevation of Privilege Vulnerability

Microsoft SQL Server Elevation of Privilege Vulnerability

SQL Server Elevation of Privilege Vulnerability

SQL Server Elevation of Privilege Vulnerability