CVE-2025-49718: Microsoft SQL Server Information Disclosure Vulnerability

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-07-08 · updated 2026-06-17
Weakness: CWE-908

Description

Use of uninitialized resource in SQL Server allows an unauthorized attacker to disclose information over a network.

Affected products

Microsoft Sql Server 2019: from 15.0.2000.5 before 15.0.2135.5; from 15.0.4003.23 before 15.0.4435.7 — fixed in 15.0.2135.5, 15.0.4435.7
Microsoft Sql Server 2022: from 16.0.1000.6 before 16.0.1140.6; from 16.0.4003.1 before 16.0.4200.1 — fixed in 16.0.1140.6, 16.0.4200.1
Microsoft SQL Server 2019 (CU 32): from 15.0.0.0 before 15.0.4435.7 — fixed in 15.0.4435.7
Microsoft SQL Server 2019 (GDR): from 15.0.0 before 15.0.2135.5 — fixed in 15.0.2135.5
Microsoft SQL Server 2022 (CU 19): from 16.0.0.0 before 16.0.4200.1 — fixed in 16.0.4200.1
Microsoft SQL Server 2022 (GDR): from 16.0.0 before 16.0.1140.6 — fixed in 16.0.1140.6

How to fix

Upgrade to a fixed version: Microsoft Sql Server 2019 15.0.2135.5, 15.0.4435.7; Microsoft Sql Server 2022 16.0.1140.6, 16.0.4200.1; Microsoft SQL Server 2019 (CU 32) 15.0.4435.7; Microsoft SQL Server 2019 (GDR) 15.0.2135.5; Microsoft SQL Server 2022 (CU 19) 16.0.4200.1; Microsoft SQL Server 2022 (GDR) 16.0.1140.6. Check the vendor advisory for mitigations.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49718

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