Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Network HTTP access with a required low-privilege EBS account gives AV:N/AC:L/PR:L/UI:N; data read and tamper without service disruption gives C:H/I:H/A:N, scope unchanged.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
Lifecycle Timeline
2DescriptionCVE.org
Vulnerability in the Oracle Complex Maintenance, Repair and Overhaul product of Oracle E-Business Suite (component: Internal Operations). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Complex Maintenance, Repair and Overhaul. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Complex Maintenance, Repair and Overhaul accessible data as well as unauthorized access to critical data or complete access to all Oracle Complex Maintenance, Repair and Overhaul accessible data. CVSS 3.1 Base Score 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).
AnalysisAI
Data compromise in Oracle Complex Maintenance, Repair and Overhaul (cMRO), a module of Oracle E-Business Suite versions 12.2.3 through 12.2.15, allows a low-privileged authenticated attacker with HTTP network access to read and modify critical application data. The flaw affects the Internal Operations component and yields high confidentiality and integrity impact (CVSS 8.1) with no availability effect. There is no public exploit identified at time of analysis, and it is not listed in CISA KEV; a fix ships in Oracle's July 2026 Critical Patch Update.
Technical ContextAI
Oracle Complex Maintenance, Repair and Overhaul (cMRO) is an enterprise asset-maintenance module built on the Oracle E-Business Suite (EBS) 12.2 applications stack, which runs on Oracle WebLogic/Application Server front-ends over HTTP and an Oracle Database back-end. The affected 'Internal Operations' component processes authenticated user requests within the EBS session framework. No CWE was assigned by NVD, but the impact profile (unauthorized creation, deletion, modification, and read of all cMRO-accessible data by a low-privileged user) together with the vendor tag 'Authentication Bypass' points to a broken access-control / authorization root cause (CWE-284/CWE-863 class) rather than memory corruption - an authorized low-tier user escaping the data boundary enforced for their role.
RemediationAI
Apply the fixes from Oracle's July 2026 Critical Patch Update (https://www.oracle.com/security-alerts/cpujul2026.html); this is Patch available per vendor advisory, as Oracle CPU bundles do not publish a standalone semantic fix version for individual CVEs - map your EBS 12.2.x level (12.2.3-12.2.15) to the corresponding cMRO CPU patch in the advisory and apply it. Until patching, reduce exposure by restricting network access to the cMRO / Internal Operations URLs so only trusted internal users and IP ranges can reach them (side effect: may block legitimate remote maintenance staff), tightening EBS role and responsibility assignments to enforce least privilege for low-tier accounts (side effect: potential workflow friction requiring role review), and enabling access logging/monitoring on cMRO data operations to detect anomalous create/delete/modify activity. Do not expose EBS directly to the internet; place it behind a reverse proxy or VPN.
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-47091
GHSA-2x4h-62rr-v3r4