Vulnerability identifier: #VU72177

Vulnerability risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-21528

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Microsoft SQL Server
Server applications / Database software

Vendor: Microsoft

Description

The vulnerability allows a remote user to execute arbitrary code on the system.

The vulnerability exists due to insufficient validation of user-supplied input. A remote user can send specially crafted data to the SQL server and execute arbitrary code on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Microsoft SQL Server: 2014 12.0.2000.8 - 2014 SP3 GDR 12.0.6169.19, 2017 14.0.1000.169 - 2017 RC2 14.0.900.75, 2022 16.0.1000.6 - 2022 RC1 16.0.950.9, 2019 15.0.2000.5 - 2019 RC1.1 15.0.1900.47, 2016 13.0.1601.5 - 2016 SP3 GDR 13.0.6419.1

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21528

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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