CVE-2026-83108 in Forms
Summary
by MITRE • 09/16/2026
Vulnerability in the Oracle Forms product of Oracle Fusion Middleware (component: Forms Services, C/S, Charmode). Supported versions that are affected are 12.2.1.19.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Forms. Successful attacks of this vulnerability can result in takeover of Oracle Forms. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 09/16/2026
The identified vulnerability resides within the Oracle Forms product, specifically affecting the Forms Services component in client/server and Charmode configurations of Oracle Fusion Middleware. This security flaw impacts supported software versions 12.2.1.19.0 and 14.1.2.0.0, representing a critical risk to organizations relying on these legacy or specific enterprise deployment models for business process automation and data presentation. The nature of this vulnerability is particularly severe because it allows an unauthenticated attacker with network access via the HTTP protocol to compromise the integrity and availability of the Oracle Forms environment. Unlike many vulnerabilities that require user interaction or valid credentials, this flaw can be exploited remotely without any prior authentication, significantly lowering the barrier for entry for malicious actors scanning public-facing infrastructure.
From a technical perspective, the vulnerability enables an attacker to achieve complete takeover of the Oracle Forms service. This level of compromise implies that the attacker gains control over the underlying process executing the application logic, potentially allowing them to execute arbitrary code, modify data in transit or at rest if accessible through the compromised session, and disrupt services for legitimate users. The high severity is quantified by a CVSS 3.1 Base Score of 9.8 out of 10, indicating an Extremely Critical risk level. The vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) confirms that the attack vector is Network-based with Low complexity and requires no Privileges or User Interaction. Furthermore, the scope remains Unchanged, meaning the impact is confined to the vulnerable component itself, yet the impacts on Confidentiality, Integrity, and Availability are all rated as High, reflecting the potential for total system compromise within the context of that service.
In terms of industry standard classifications, this vulnerability aligns with CWE-287, which describes Improper Authentication, where an attacker is able to bypass authentication mechanisms due to a flaw in how credentials or session tokens are validated. Additionally, given the ability to take over the application and potentially execute commands, it relates closely to CWE-94, Improper Control of Generation of Code (Code Injection), particularly if the takeover involves injecting malicious logic into the server-side processing pipeline. From an offensive security framework perspective, this vulnerability facilitates initial access via network services, mapping to MITRE ATT&CK technique T1190, Exploit Public-Facing Application. The lack of required user interaction and low complexity makes it highly suitable for automated exploitation tools commonly used in widespread internet scanning campaigns targeting vulnerable middleware deployments.
The operational impact of such a vulnerability is profound for enterprise environments. Oracle Forms applications are often deeply integrated into core business workflows, handling sensitive financial data, human resources information, or supply chain logistics. A successful compromise could lead to the exfiltration of confidential corporate data, unauthorized modification of critical records leading to regulatory non-compliance and financial loss, and complete denial of service that halts business operations. Because Oracle Forms is a legacy technology often maintained for backward compatibility rather than modern web standards, these systems may lack contemporary security controls such as robust input validation frameworks or advanced threat detection mechanisms found in newer application stacks. This makes them attractive targets for attackers seeking to pivot into the broader internal network after gaining an initial foothold through this unauthenticated entry point.
Mitigation strategies must prioritize immediate remediation due to the high exploitability and severity of the flaw. The primary recommendation is to apply the latest security patches provided by Oracle, which address the specific code path exploited in Forms Services for C/S and Charmode configurations. Organizations should verify their current version against the affected list and ensure that all intermediate components are updated to compatible patched versions. In environments where immediate patching is not feasible due to testing constraints or operational dependencies, network-level controls such as Web Application Firewalls (WAF) can be configured to block requests exhibiting patterns associated with this exploitation vector. Additionally, restricting access to the Oracle Forms service via firewall rules to only trusted IP addresses and implementing strict authentication requirements at the reverse proxy level can reduce the attack surface by preventing unauthenticated direct access from external networks. Regular vulnerability scanning of middleware components is essential to detect such exposures before they are actively exploited in the wild.