CVE-2026-101828 in Mobile Application Server
Summary
by MITRE • 10/21/2026
Vulnerability in the Oracle Mobile Application Server product of Oracle E-Business Suite (component: MWA Terminal Server). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Mobile Application Server. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Mobile Application Server accessible data. CVSS 3.1 Base Score 6.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).
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Analysis
by VulDB Data Team • 10/21/2026
The identified vulnerability resides within the MWA Terminal Server component of Oracle Mobile Application Server, a critical subsystem in Oracle E-Business Suite versions 12.2.3 through 12.2.15. This security flaw is classified as an easily exploitable issue that permits low-privileged attackers to compromise the integrity and confidentiality of the application server environment. The attack vector relies on network access via HTTP, indicating that the vulnerability can be triggered remotely without requiring user interaction or complex social engineering tactics. The presence of this weakness in a widely deployed enterprise suite highlights significant risks for organizations relying on these specific versions for their mobile business operations.
From a technical perspective, the flaw allows an attacker with low privileges to gain unauthorized access to critical data stored within the Oracle Mobile Application Server. This capability stems from insufficient access controls or improper validation mechanisms within the HTTP handling logic of the MWA Terminal Server. By exploiting this weakness, an adversary can bypass standard authentication and authorization checks, effectively elevating their privilege level in terms of data visibility without needing administrative rights on the underlying operating system or database. The vulnerability aligns with CWE-284 Improper Access Control, as it involves a failure to enforce proper restrictions on what authenticated users are allowed to do, specifically regarding access to sensitive information resources.
The operational impact of this vulnerability is severe due to its potential for complete data exposure. Successful exploitation results in high confidentiality impacts, allowing the attacker to read all Oracle Mobile Application Server accessible data. This includes potentially sensitive customer records, financial transactions, and proprietary business intelligence stored within the E-Business Suite database. While integrity and availability are not directly impacted according to the CVSS scoring, the loss of confidentiality alone poses a significant threat to regulatory compliance and corporate reputation. Organizations handling personally identifiable information or protected health information could face severe legal consequences under regulations such as GDPR or HIPAA if this data is exfiltrated through this vector.
In terms of attack classification, this vulnerability maps to MITRE ATT&CK technique T1078 Valid Accounts, where attackers use legitimate credentials with low privileges to access resources they should not have permission to view. It also relates to T1530 Data from Local System, as the attacker accesses data stored locally on the application server before potentially exfiltrating it. The CVSS 3.1 base score of 6.5 reflects a medium severity level driven primarily by high confidentiality impact and low attack complexity. However, given that Oracle E-Business Suite often contains mission-critical enterprise data, even a medium-severity vulnerability can have disproportionate business consequences if left unpatched in production environments.
Mitigation strategies must prioritize immediate patching to the latest supported version of Oracle Mobile Application Server within the 12.2.x family or higher, as Oracle typically resolves such issues through security patches released in quarterly Critical Patch Updates. In scenarios where immediate patching is not feasible due to operational constraints, network segmentation should be implemented to restrict HTTP access to the MWA Terminal Server interface from untrusted networks. Additionally, deploying a Web Application Firewall can help detect and block exploit attempts by filtering malicious HTTP requests that target this specific vulnerability. Regular audits of user privileges are also recommended to ensure that low-privileged accounts do not have unnecessary access to sensitive data modules within the application server architecture.