CVE-2026-83095 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).
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Analysis
by VulDB Data Team • 09/16/2026
The identified vulnerability resides within the Oracle Forms component of Oracle Fusion Middleware, specifically affecting the server-side services and client-server communication protocols under Charmode configurations. This security flaw impacts specific supported releases, namely version 12.2.1.19.0 and version 14.1.2.0.0. The nature of this vulnerability is particularly severe due to its high exploitability characteristics. It allows an unauthenticated attacker who possesses network access via the HTTP protocol to successfully compromise the integrity and availability of the Oracle Forms application infrastructure. Unlike vulnerabilities that require user interaction or prior authentication, this flaw can be triggered remotely by any actor with connectivity to the affected service endpoints, significantly expanding the attack surface available to malicious entities operating over standard web ports.
From a technical perspective, the vulnerability enables complete system takeover, indicating a critical failure in input validation, session management, or privilege escalation mechanisms within the Forms Services architecture. The ability for an unauthenticated user to achieve full control suggests that the application fails to properly enforce access controls before processing certain requests or executing specific code paths. This likely involves manipulating internal state variables or exploiting buffer handling errors that allow arbitrary command execution or memory corruption. Such flaws are often categorized under CWE-20, which refers to Improper Input Validation, as well as potentially involving CWE-78 for OS Command Injection if the takeover results in shell access on the underlying host system. The absence of authentication requirements means that automated scanning tools and opportunistic attackers can leverage this flaw without needing credentials, making it a high-priority target for exploitation campaigns aimed at establishing persistent footholds within enterprise networks.
The operational impact of successfully exploiting this vulnerability is catastrophic for organizations relying on Oracle Fusion Middleware for business-critical applications. With a CVSS 3.1 Base Score of 9.8, the severity rating reflects near-total compromise capabilities across confidentiality, integrity, and availability dimensions. An attacker gaining takeover access can exfiltrate sensitive data stored within or accessible through the Forms application, alter database records to manipulate business logic, or disrupt service availability by crashing processes or deploying ransomware payloads on the server host. This level of impact aligns with ATT&CK techniques such as T1059 Command and Scripting Interpreter for executing malicious commands, T1078 Valid Accounts if lateral movement is facilitated using compromised credentials found in memory, and potentially T1486 Data Encrypted for Impact if ransomware is deployed. The high availability impact also means that critical business operations dependent on Oracle Forms interfaces can be halted, leading to significant financial and reputational damage.
Mitigation strategies must prioritize immediate remediation given the remote unauthenticated nature of the exploit. Organizations running affected versions 12.2.1.19.0 or 14.1.2.0.0 should apply the latest security patches provided by Oracle as soon as they are available, ensuring that all Forms Services components are updated to a version where this flaw is resolved. In scenarios where patching cannot be implemented immediately due to operational constraints, network-level controls should be enforced to restrict access to the vulnerable HTTP endpoints. This includes configuring firewalls or web application firewalls to block traffic from untrusted IP addresses and ensuring that only authenticated users can reach these services if possible through reverse proxy configurations with strict authentication policies. Additionally, monitoring for anomalous network activity targeting Forms service ports can help detect exploitation attempts in real-time, allowing security teams to respond before full system compromise occurs. Regular vulnerability assessments should be conducted to ensure no other unpatched systems remain exposed to similar risks within the middleware environment.