CVE-2025-49718: Use of uninitialized resource in SQL Server allows an unauthorized attacker to disclose information over a network

High severity · published Jul 8, 2025

CVE-2025-49718

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

7.5

CVSS

3.9%

EPSS

On KEV

Description

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

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

High

Integrity

None

Availability

None

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)3.9% · higher than 90% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Sql Server 2019 · Microsoft

15.0.2000.5 before 15.0.2135.5; 15.0.4003.23 before 15.0.4435.7 · source: NVD

Sql Server 2022 · Microsoft

16.0.1000.6 before 16.0.1140.6; 16.0.4003.1 before 16.0.4200.1 · source: NVD

Affected product

Sql Server 2019

Microsoft

All Sql Server 2019 CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2025-49718

CVE.org

https://www.cve.org/CVERecord?id=CVE-2025-49718

Vendor Advisory

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