CVE-2025-49718 Microsoft SQL Server Information Disclosure Vulnerability

High 7.5 Published 8 Jul 2025 Updated 13 Feb 2026

An unauthorized attacker can disclose information over the network due to use of uninitialized resources in Microsoft SQL Server.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-49718?

CVE-2025-49718 is a high-severity vulnerability in Microsoft Sql Server 2019, published on 8 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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

Weakness: CWE-908

Which versions are affected by CVE-2025-49718?

It affects 2 products.

Products include Microsoft Sql Server 2019, Microsoft Sql Server 2022.

How do I fix CVE-2025-49718?

No fix has been published for CVE-2025-49718 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-49718 being exploited?

There is no known exploitation of CVE-2025-49718 in the wild and no public exploit code.

All Microsoft Sql Server 2019 vulnerabilities

Sources

Also known as GHSA-4p9p-mw39-jmxv.