CVE-2016-8314 in FLEXCUBE Core Banking
Summary
by MITRE
Vulnerability in the Oracle FLEXCUBE Core Banking component of Oracle Financial Services Applications (subcomponent: Core). Supported versions that are affected are 5.1.0, 5.2.0 and 11.5.0. Difficult to exploit vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle FLEXCUBE Core Banking. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle FLEXCUBE Core Banking accessible data. CVSS v3.0 Base Score 3.1 (Confidentiality impacts).
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Analysis
by VulDB Data Team • 05/15/2026
The vulnerability identified as CVE-2016-8314 resides within Oracle FLEXCUBE Core Banking component of Oracle Financial Services Applications, specifically affecting subcomponent Core. This security flaw impacts versions 5.1.0, 5.2.0, and 11.5.0, representing a significant concern for financial institutions utilizing this core banking platform. The vulnerability classifies as a difficult to exploit issue, meaning that while it presents a legitimate security risk, the conditions required for successful exploitation are relatively complex. The attack vector requires an attacker to have network access via HTTP protocol, indicating that the vulnerability could potentially be leveraged from external network positions without requiring physical access to the internal network infrastructure.
The technical nature of this vulnerability stems from insufficient access controls within the Oracle FLEXCUBE Core Banking system, allowing a low-privileged attacker to perform unauthorized read operations against specific data subsets within the application. This weakness manifests as a confidentiality impact, where attackers can extract sensitive information without proper authorization. The CVSS v3.0 base score of 3.1 reflects the relatively low severity of this vulnerability compared to more critical flaws, yet it still represents a legitimate threat to financial data security. The vulnerability's classification aligns with CWE-284, which addresses improper access control mechanisms, and specifically relates to weak access control in web applications. The attack surface is particularly concerning given that the vulnerability operates through standard HTTP protocols, making it accessible through common web-based attack vectors.
The operational impact of CVE-2016-8314 extends beyond simple data theft, as it could enable attackers to gather sensitive financial information that might be used for further exploitation or financial fraud. While the vulnerability requires network access and involves a low-privileged attacker, the potential for data exfiltration remains significant within financial environments where core banking data includes customer account information, transaction histories, and other sensitive financial details. The affected versions represent a substantial portion of Oracle FLEXCUBE deployments, meaning that numerous financial institutions could potentially be impacted by this vulnerability. Organizations utilizing these specific versions should consider the implications of data exposure, particularly in environments where regulatory compliance requirements mandate strict data protection measures.
Mitigation strategies for this vulnerability should focus on immediate patching of affected systems to ensure that the identified access control weakness is resolved. Oracle typically releases security patches for such vulnerabilities, and organizations should prioritize applying these updates to their FLEXCUBE Core Banking installations. Network-level controls including firewalls and access control lists should be implemented to limit HTTP access to only authorized personnel and systems. Additionally, implementing robust monitoring and logging of HTTP traffic can help detect potential exploitation attempts. The vulnerability's classification under ATT&CK technique T1071.004 for application layer protocol usage indicates that network traffic analysis and anomaly detection systems should be enhanced to identify unusual patterns of HTTP requests targeting the affected banking application. Regular security assessments and penetration testing should be conducted to verify that the implemented controls effectively prevent unauthorized access to sensitive financial data. Organizations should also consider implementing additional authentication mechanisms and access controls to strengthen their overall security posture against similar vulnerabilities in their financial applications.