CVE-2026-83484 in US Federal Human Resources
Summary
by MITRE • 09/16/2026
Vulnerability in the Oracle US Federal Human Resources 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 US Federal Human Resources. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle US Federal Human Resources accessible data as well as unauthorized read access to a subset of Oracle US Federal Human Resources accessible data. CVSS 3.1 Base Score 7.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/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 US Federal Human Resources, a critical module within the broader Oracle E-Business Suite ecosystem. This specific flaw affects supported software versions ranging from 12.2.3 through 12.2.15, indicating that a significant portion of active deployments remain susceptible to exploitation. The nature of this vulnerability is particularly concerning because it allows for remote code execution or data manipulation without requiring user interaction, leveraging the HTTP protocol as the primary attack vector. This accessibility means that any attacker with network connectivity to the affected system can attempt to exploit the flaw, significantly expanding the potential threat surface beyond internal networks to include internet-facing deployments if proper perimeter defenses are not in place.
From a technical perspective, the vulnerability stems from insufficient validation or access control mechanisms within the Internal Operations module. The core issue enables low-privileged attackers to perform unauthorized actions that should be restricted to higher-level administrative accounts. Specifically, the flaw permits the creation, deletion, and modification of critical data as well as all accessible data within the Oracle US Federal Human Resources environment. Additionally, it grants unauthorized read access to a subset of sensitive information stored in the system. This level of control effectively bypasses standard role-based access controls, allowing an attacker with minimal initial privileges to escalate their influence over the application's integrity and confidentiality. The vulnerability is classified under CWE-269 for Improper Privilege Management or potentially CWE-862 for Missing Authorization, depending on whether the exploit relies on privilege escalation or direct unauthorized action by a low-level user account.
The operational impact of this vulnerability is severe due to its high integrity impact and moderate confidentiality impact, resulting in a CVSS 3.1 Base Score of 7.1. The ability to modify critical data means that an attacker could alter payroll records, employee personal information, or system configurations, leading to significant financial loss, regulatory non-compliance, and reputational damage. In the context of US Federal Human Resources, where strict adherence to federal security standards is mandatory, such unauthorized modifications can violate compliance requirements related to data integrity and privacy. Furthermore, the read access capability exposes sensitive personally identifiable information (PII) of federal employees, which could be leveraged for further social engineering attacks or identity theft campaigns. The attack vector aligns with ATT&CK technique T1078 Valid Accounts, as it exploits legitimate but low-privileged credentials to gain unauthorized access and manipulate system resources.
Mitigation strategies must focus on immediate patching and enhanced monitoring. Organizations running affected versions of Oracle E-Business Suite should apply the latest security patches provided by Oracle to address this specific flaw in the Internal Operations component. Until patches are applied, network segmentation is critical; administrators should restrict HTTP access to the application server from untrusted networks and ensure that only authorized IP addresses can reach the vulnerable endpoints. Additionally, implementing strict web application firewalls with rules designed to detect anomalous data modification patterns or unauthorized API calls can provide a layer of defense against exploitation. Regular audits of user privileges are also recommended to ensure that low-privileged accounts do not possess excessive permissions that could be leveraged in conjunction with this vulnerability. Continuous monitoring for unusual activity related to the creation, deletion, or modification of human resources records will help detect potential breaches early and minimize the window of exposure.