High severity · published Jul 8, 2025
CVE-2025-49717
Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network
8.5
CVSS
1.1%
EPSS
No
On KEV
Description
Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 66% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SS
Sql Server 2019 · Microsoft
15.0.2000.5 before 15.0.2135.5; 15.0.4003.23 before 15.0.4435.7 · source: NVD
SS
Sql Server 2022 · Microsoft
16.0.1000.6 before 16.0.1140.6; 16.0.4003.1 before 16.0.4200.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-49717
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-49717
Vendor Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49717
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