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CVE-2025-59250: High Vulnerability in Microsoft JDBC Driver for SQL Server

A high-severity vulnerability in the Microsoft JDBC Driver for SQL Server allows unauthorized network spoofing due to improper input validation. Organizations need to prioritize remediation to mitigate risks.

HIGHCVSS 8.1 · Published October 14, 2025

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CVE-2025-59250 is a high-severity vulnerability affecting the Microsoft JDBC Driver for SQL Server. This vulnerability allows unauthorized attackers to perform spoofing over a network due to improper input validation. With a CVSS score of 8.1, this vulnerability poses significant risks to organizations that utilize this driver in their database applications.

The exploitation of this vulnerability can lead to serious consequences, including unauthorized access to sensitive data. Organizations are urged to address this vulnerability promptly to prevent potential data breaches and maintain the integrity of their systems.

Currently, there are no known exploits for this vulnerability, but the potential for exploitation remains high. Organizations should prioritize patching immediately to mitigate risks associated with this vulnerability.

As this vulnerability affects a widely used component, the urgency for defenders to implement mitigation strategies is critical. Failure to address it may leave systems vulnerable to future attacks.

Vulnerability Details

The vulnerability is characterized by improper input validation in the JDBC Driver for SQL Server, allowing attackers to perform network spoofing. This vulnerability has a CVSS score of 8.1, indicating high severity. The affected product is the JDBC Driver for SQL Server, and it was published on October 14, 2025.

The vulnerability falls under the CWE classification of CWE-20, which relates to improper input validation. Organizations should refer to the vendor's guidelines for specific details on the vulnerability.

Technical Analysis

The root cause of this vulnerability stems from the failure to properly validate input, allowing unauthorized users to spoof their identity over the network. The attack vector for this vulnerability is network-based, and the attack complexity is low, requiring no special privileges or user interaction. The confidentiality and integrity impacts are both classified as high, while there is no impact on availability.

Risk & Impact Analysis

Risk to organizations includes potential unauthorized access to sensitive database information and the ability to manipulate data. Given the high severity and the possibility of exploitation, organizations should assess their deployment of the JDBC Driver for SQL Server and prioritize remediation efforts. The vulnerability's impact could extend to a wide range of applications relying on this driver, increasing its blast radius.

As the exploitation status of this vulnerability is currently classified as high, organizations must act swiftly to reduce their exposure. The urgency for organizations to address this vulnerability should be high, reflecting the potential consequences of inaction.

Exploitation Status

Signal

Status

Known Exploit

No

Public PoC

No

Actively Exploited

No

Ransomware Use

No

Affected Versions

The vulnerable versions of the JDBC Driver for SQL Server include those from version 10.2.0 up to, but not including, 10.2.4; 11.2.0 up to 11.2.4; 12.2.0 up to 12.2.1; 12.4.0 up to 12.4.3; 12.6.0 up to 12.6.5; 12.8.0 up to 12.8.2; 12.10.0 up to 12.10.2; and 13.2.0 up to 13.2.1.

Mitigation & Remediation

Organizations should prioritize patching the JDBC Driver for SQL Server to mitigate this vulnerability. Ensure that you upgrade to the latest version provided by Microsoft. If immediate patching is not possible, consider implementing network controls to restrict access to affected systems.

For further details on effective security practices, organizations can refer to the penetration testing recommendations available through penetration testing services.

Detection Guidance

To detect potential exploitation attempts, organizations should monitor logs for irregular access patterns, including failed login attempts and unusual data access requests. Behavioral anomalies, such as unexpected changes in user roles or permissions, should also be closely tracked.

AppSecure Threat Intelligence Insight

CVE-2025-59250 exemplifies the ongoing need for robust security measures within software development. It highlights the risks associated with improper input validation and serves as a reminder of the importance of rigorous security testing throughout the software lifecycle.

Organizations should continuously monitor their systems for similar vulnerabilities and strengthen their application security practices. Investing in penetration testing methodologies can significantly reduce the risk of similar vulnerabilities in the future.

Adopting a proactive security stance is essential for organizations to safeguard their data and systems against evolving threats.

Additionally, organizations are encouraged to stay informed about the latest security trends and threat intelligence to better prepare for potential vulnerabilities.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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