CVE-2026-83140 in Field Service
Summary
by MITRE • 09/16/2026
Vulnerability in the Oracle Field Service 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 Field Service. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Field Service 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 • 09/16/2026
The identified vulnerability resides within the Internal Operations component of Oracle Field Service, a module integral to 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 with network access via HTTP to compromise the integrity and confidentiality of the application environment. The presence of this vulnerability indicates a significant weakness in how the system handles authentication or authorization checks for specific internal operations, allowing unauthorized entities to bypass expected restrictions without requiring complex exploitation techniques or user interaction.
From a technical perspective, the flaw enables an attacker with low privileges to access critical data that should be restricted based on their role level. The attack vector is network-based and utilizes standard HTTP protocols, which simplifies remote exploitation for any actor who can reach the vulnerable service over the network. Because no user interface interaction is required, the risk of accidental discovery or mitigation through operational awareness is reduced, making this a persistent threat to systems where such services are exposed or accessible within an internal network segment that lacks sufficient micro-segmentation controls.
The operational impact of successfully exploiting this vulnerability is severe regarding data confidentiality. An attacker can gain unauthorized access to critical business data managed by Oracle Field Service, potentially including sensitive customer information, field technician schedules, service history, and other proprietary assets. While the current assessment indicates no immediate impact on integrity or availability, the complete compromise of accessible data represents a substantial breach of privacy and intellectual property rights. This aligns with high-impact confidentiality outcomes as defined in standard vulnerability scoring frameworks.
In terms of industry standards classification, this vulnerability corresponds to CWE-269 Improper Privilege Management, specifically reflecting issues where an actor is able to perform actions that exceed their assigned privileges. Furthermore, the exploitation technique maps to MITRE ATT&CK techniques related to Initial Access and Credential Access, as it leverages existing low-level credentials to escalate access to sensitive resources without detection through normal operational channels. The CVSS 3.1 base score of 6.5 reflects a medium severity rating driven primarily by high confidentiality impact despite the requirement for low privileges and network accessibility.
To mitigate this risk, organizations running affected versions must prioritize applying the latest security patches provided by Oracle immediately. It is critical to verify that all instances within the supported version range are updated to a patched release where these internal operation checks have been hardened. Additionally, implementing strict network segmentation policies can limit exposure by ensuring that only authorized application servers and administrative workstations can communicate with the Oracle Field Service components over HTTP. Enforcing HTTPS for all communications further reduces the risk of interception or manipulation during transit, although patching remains the primary defense against this specific privilege escalation flaw.