CVE-2025-21548 is a medium-severity vulnerability identified in the Oracle MySQL Connector/Python, specifically affecting versions up to 9.1.0. The vulnerability can be exploited easily by a high-privileged attacker who has network access through multiple protocols. Successful exploitation necessitates human interaction from a person who is not the attacker, which adds a layer of complexity to the attack vector.
The potential impacts of this vulnerability are significant, as it allows unauthorized creation, deletion, or modification of critical data. Furthermore, it can lead to unauthorized read access to a subset of data and may cause a denial of service by hanging or frequently crashing the MySQL Connectors. Given its CVSS score of 6.4, organizations should consider the risk to their operations and prioritize remediation.
Defenders should be particularly vigilant regarding this vulnerability, as successful attacks can compromise the integrity and availability of data managed by the MySQL Connectors. Organizations utilizing affected versions need to act promptly to mitigate the risks posed by this vulnerability.
Organizations should prioritize patching immediately to protect against this vulnerability. The urgency for remediation is underscored by the potential for unauthorized access to sensitive data and the possibility of operational disruptions.
Vulnerability Details
This vulnerability allows high privileged attackers with network access to compromise MySQL Connectors, leading to unauthorized data manipulation and potential denial of service.
The CVSS score for this vulnerability is 6.4, indicating medium severity. The affected product is Oracle's MySQL Connector/Python, specifically versions 9.1.0 and prior. The CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:H/A:H), detailing impacts on confidentiality, integrity, and availability.
The vulnerability was published on January 21, 2025, and classified under CWE-400, indicating inadequate resource restrictions.
Technical Analysis
The root cause of this vulnerability stems from a lack of sufficient controls over resource management, allowing unauthorized actions to be performed by attackers with high privileges. The attack vector is primarily network-based, with a low attack complexity, requiring high privileges and user interaction.
Attackers may leverage this vulnerability by exploiting the network access to initiate unauthorized actions. The impact on confidentiality is rated as low, while integrity and availability impacts are high, indicating a serious threat to data management and service stability.
Risk & Impact Analysis
Risk to organizations includes unauthorized manipulation of critical MySQL data, leading to potential data breaches and operational disruptions. The blast radius is significant, especially for businesses relying on Oracle MySQL for data management. Organizations must assess their exposure and implement necessary security measures.
Given the CVSS score of 6.4, organizations should address this vulnerability in their priority patch cycle. The potential for exploitation underscores the importance of prompt remediation.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions of the MySQL Connector/Python are 9.1.0 and prior. Organizations using these versions need to prioritize updating to the latest patched version to mitigate the risks associated with this vulnerability.
Mitigation & Remediation
To remediate this vulnerability, organizations should update the MySQL Connector/Python to the latest version available. Patching is crucial to prevent unauthorized access and data manipulation. If an immediate patch is not available, organizations should consider implementing network controls to limit access to the affected components.
Configuration hardening practices and continuous monitoring should also be established to detect any anomalous behavior that may indicate an attempted exploitation of this vulnerability.
Organizations should validate remediation through penetration testing to ensure that all vulnerabilities have been addressed.
Detection Guidance
Organizations should monitor logs for indicators of unauthorized access attempts and unusual patterns in data access. Behavioral anomalies within the MySQL Connectors should be logged and reviewed regularly to identify any potential exploitation attempts.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-21548 lies in its representation of the vulnerabilities present in widely used database connectors. Security teams must recognize the patterns of network-exploitable vulnerabilities and proactively address them to reduce their organization’s attack surface.
This incident reinforces the importance of regular security assessments and continuous penetration testing to identify and mitigate potential risks before they can be exploited.
Developing a robust vulnerability management program can help organizations stay ahead of emerging threats.
Employing effective penetration testing methodologies will enhance organizations' ability to detect and respond to vulnerabilities like CVE-2025-21548.
Regularly updating security testing practices is critical in maintaining a secure environment.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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