CVE-2025-30751 in Database Server
Summary
by MITRE • 07/15/2025
Vulnerability in the Oracle Database component of Oracle Database Server. Supported versions that are affected are 19.3-19.27 and 23.4-23.8. Easily exploitable vulnerability allows low privileged attacker having Create Session, Create Procedure privilege with network access via Oracle Net to compromise Oracle Database. Successful attacks of this vulnerability can result in takeover of Oracle Database. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 07/25/2025
The vulnerability identified as CVE-2025-30751 represents a critical security flaw within Oracle Database Server's database component that poses significant operational risks to organizations relying on this enterprise database platform. This vulnerability affects specific version ranges including 19.3 through 19.27 and 23.4 through 23.8, indicating a substantial attack surface across multiple supported database releases. The flaw exists within Oracle's network communication protocols and specifically targets the Oracle Net communication layer that facilitates database connectivity and data exchange between clients and servers.
The technical nature of this vulnerability stems from insufficient access controls and authentication mechanisms within Oracle Database's network handling capabilities. Attackers with minimal privileges including Create Session and Create Procedure permissions can exploit this weakness to establish unauthorized network connections and potentially execute malicious code within the database environment. The vulnerability's exploitability classification as "easily exploitable" suggests that the attack vector requires minimal technical expertise and can be accomplished through standard network-based attack methods. The CVSS 3.1 score of 8.8 reflects the severity of potential impacts across all three core security principles.
This vulnerability creates a substantial risk of complete database compromise, as successful exploitation can result in full takeover of the Oracle Database instance. The high impact scores across confidentiality, integrity, and availability demonstrate that attackers can potentially access sensitive data, modify database contents, and disrupt database operations entirely. The attack vector through Oracle Net communication means that adversaries can leverage network-based attacks to reach vulnerable database systems, potentially bypassing traditional network security controls. This represents a significant concern for organizations that rely on Oracle Database for mission-critical applications and data storage.
Organizations should immediately implement mitigation strategies including applying the latest Oracle security patches and updates to affected versions, implementing network segmentation to limit direct database access, and enforcing strict privilege controls to minimize the potential impact of compromised accounts. The vulnerability aligns with CWE-284 (Improper Access Control) and represents a clear violation of the principle of least privilege that should be maintained in database environments. From an ATT&CK framework perspective, this vulnerability maps to techniques involving privilege escalation and persistence within database environments, making it particularly dangerous for attackers seeking long-term access to sensitive data systems. Network monitoring should be enhanced to detect unusual Oracle Net traffic patterns that might indicate exploitation attempts, and regular security assessments should verify that database configurations adhere to security best practices.