Heap-Based Buffer Overflow in Microsoft SQL Server
CVE-2025-49717

8.5HIGH

Key Information:

Vendor

Microsoft
Status
Microsoft Sql Server 2019 (gdr)
Microsoft Sql Server 2022 (gdr)
Microsoft Sql Server 2019 (cu 32)
Microsoft Sql Server 2022 (cu 19)
Vendor
CVE Published:
8 July 2025

What is CVE-2025-49717?

A vulnerability exists in Microsoft SQL Server due to a heap-based buffer overflow that allows an authorized attacker to execute arbitrary code over a network. This issue can potentially lead to unauthorized actions or access to sensitive data. It is crucial for users to apply security updates and implement best practices to mitigate this risk.

Affected Version(s)

Microsoft SQL Server 2019 (CU 32) x64-based Systems 15.0.0.0 < 15.0.4435.7

Microsoft SQL Server 2019 (GDR) x64-based Systems 15.0.0 < 15.0.2135.5

Microsoft SQL Server 2022 (CU 19) x64-based Systems 16.0.0.0 < 16.0.1140.6

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.