CVE-2026-83425 in Complex Maintenance Repair and Overhaul
Summary
by MITRE • 09/16/2026
Vulnerability in the Oracle Complex Maintenance, Repair and Overhaul product of Oracle E-Business Suite (component: Internal Operations). Supported versions that are affected are 12.2.12-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Complex Maintenance, Repair and Overhaul. While the vulnerability is in Oracle Complex Maintenance, Repair and Overhaul, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Complex Maintenance, Repair and Overhaul accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Complex Maintenance, Repair and Overhaul. CVSS 3.1 Base Score 8.5 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L).
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Analysis
by VulDB Data Team • 09/16/2026
The identified vulnerability resides within the Internal Operations component of Oracle Complex Maintenance, Repair and Overhaul, a critical module within the broader Oracle E-Business Suite ecosystem affecting versions 12.2.12 through 12.2.15. This security flaw is characterized by its susceptibility to exploitation by low-privileged attackers who possess network access via HTTP protocols. The severity of this issue is underscored by a CVSS 3.1 Base Score of 8.5, indicating a High level of risk that demands immediate attention from system administrators and security operations teams responsible for maintaining the integrity of enterprise resource planning environments.
From a technical perspective, the vulnerability allows an attacker to compromise the application's internal logic through network-based interactions without requiring user interaction or complex authentication bypasses beyond basic low-level credentials. The attack vector is classified as Network with Low Attack Complexity, meaning that automated tools can readily exploit this flaw once initial access is established within the network perimeter. This aligns with CWE-287, which describes Improper Authentication, and potentially CWE-352 for Cross-Site Request Forgery if the vulnerability involves state-changing actions triggered by web requests without adequate validation of intent or session integrity.
The operational impact of this vulnerability extends beyond the immediate application layer due to a significant scope change in the attack model. While the flaw is technically located within Oracle Complex Maintenance, Repair and Overhaul, successful exploitation can lead to lateral movement or privilege escalation that impacts additional products within the E-Business Suite environment. This cross-product impact amplifies the risk profile, as attackers may leverage compromised data from one module to gain unauthorized access to critical financial, supply chain, or human resources data housed in other integrated systems. The primary consequences involve high-impact confidentiality breaches and low-to-medium availability impacts, allowing for complete access to all accessible data within the targeted modules and causing partial denial of service conditions that disrupt business continuity.
In terms of threat actor behavior, this vulnerability facilitates unauthorized access to sensitive corporate information and enables disruptive actions against system availability. The ability to cause a partial denial of service suggests that attackers can degrade performance or render specific functionalities unavailable, impacting operational efficiency. This aligns with MITRE ATT&CK techniques related to Initial Access via Web Applications and potentially Impact activities such as Data Exfiltration or Service Disruption. Organizations must recognize that the low privilege requirement for exploitation makes this a persistent threat from insider threats or compromised user accounts within the internal network.
Mitigation strategies should prioritize immediate patching of all affected Oracle E-Business Suite instances to version 12.2.16 or later, where these security flaws have been addressed by vendor engineering teams. In environments where immediate patching is not feasible due to operational constraints, organizations must implement robust compensating controls such as strict network segmentation to isolate the application from untrusted networks and enforce multi-factor authentication for all user accounts with access to the E-Business Suite interface. Additionally, deploying Web Application Firewalls configured to detect and block anomalous HTTP requests associated with this specific vulnerability can provide a layer of defense against exploitation attempts while long-term remediation plans are executed. Regular auditing of low-privileged account activity is also recommended to identify potential abuse early in the attack lifecycle.