#VU112568 Use of uninitialized resource in Microsoft SQL Server - CVE-2025-49718

Vulnerability identifier: #VU112568

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-49718

CWE-ID: CWE-908

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Microsoft SQL Server
Server applications / Database software

Vendor: Microsoft

Description

The vulnerability allows a remote attacker to bypass certain security restrictions.

The vulnerability exists due to usage of uninitialized resources in Microsoft SQL Server. A remote attacker can pass specially crafted data to the application, trigger uninitialized usage of resources and gain access to sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Microsoft SQL Server: before

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

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.