CVE-2026-83105 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. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Forms. While the vulnerability is in Oracle Forms, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle Forms. CVSS 3.1 Base Score 9.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/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 product of the Oracle Fusion Middleware suite, specifically affecting the Forms Services component in client/server and Charmode configurations. This security flaw impacts supported software versions 12.2.1.19.0 and 14.1.2.0.0. The nature of this defect is characterized as a difficult-to-exploit vulnerability that permits an unauthenticated attacker to compromise the Oracle Forms application infrastructure. Access vectors for exploitation are network-based, requiring connectivity via HTTP protocols. Despite the high complexity associated with successful exploitation attempts, the potential consequences of a breach are severe, leading to complete system takeover and significant collateral damage across dependent products due to scope changes inherent in the middleware architecture.
From a technical perspective, this vulnerability aligns with CWE-287, which denotes Improper Authentication, as it allows unauthorized access without valid credentials. The attack vector is classified under ATT&CK technique T1059, Command and Scripting Interpreter, or potentially T1133, External Remote Services, depending on the specific mechanism used to achieve remote code execution. The high complexity of exploitation suggests that while automated tools may not easily trigger this flaw, a skilled adversary with sufficient time and resources can craft specialized payloads to bypass existing security controls. This difficulty in exploitation serves as a partial mitigating factor but does not negate the critical severity rating assigned by CVSS 3.1 standards.
The operational impact of exploiting this vulnerability is catastrophic for organizations relying on Oracle Fusion Middleware. A successful compromise results in full control over the Oracle Forms environment, enabling attackers to execute arbitrary commands, modify data integrity, and disrupt service availability. The CVSS Base Score of 9.0 reflects a Critical severity level, driven by high impacts across confidentiality, integrity, and availability metrics. Furthermore, the scope change indicator signifies that compromising this single component can lead to lateral movement or privilege escalation within the broader middleware ecosystem, potentially exposing sensitive data stored in associated databases or allowing further infiltration into connected enterprise applications.
Mitigation strategies must prioritize immediate patching of all affected instances running versions 12.2.1.19.0 and 14.1.2.0.0 to Oracle-provided security patches that address this specific flaw. In the interim, organizations should implement strict network segmentation to restrict HTTP access to Forms Services from untrusted networks. Additionally, deploying Web Application Firewalls with rules designed to detect anomalous request patterns associated with complex exploitation techniques can provide a layer of defense against automated and manual attacks. Continuous monitoring for signs of unauthorized administrative activity or unusual process execution within the middleware environment is essential to detect potential compromise attempts early.