CVE-2026-83074 in Siebel CRM Cloud Applications
Summary
by MITRE • 09/16/2026
Vulnerability in the Siebel CRM Cloud Applications product of Oracle Siebel CRM (component: Siebel Cloud Manager). Supported versions that are affected are 22.3-26.7. Easily exploitable vulnerability allows unauthenticated attacker with network access via SSH to compromise Siebel CRM Cloud Applications. While the vulnerability is in Siebel CRM Cloud Applications, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Siebel CRM Cloud Applications accessible data. CVSS 3.1 Base Score 8.6 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N).
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 09/16/2026
The identified vulnerability resides within the Siebel Cloud Manager component of Oracle Siebel CRM, specifically affecting supported versions ranging from 22.3 through 26.7. This security flaw represents a critical weakness in the authentication and access control mechanisms governing remote management interfaces. The core technical issue stems from an insufficient validation process that permits unauthenticated actors to interact with sensitive system functions over Secure Shell protocols. By exploiting this deficiency, an attacker who possesses network connectivity to the target infrastructure can bypass standard authorization requirements entirely. This lack of proper identity verification allows malicious entities to execute commands or access internal structures without presenting valid credentials, fundamentally undermining the integrity of the administrative boundary between authorized administrators and external threats.
The operational impact of this vulnerability is severe due to its high exploitability and broad scope. The CVSS 3.1 base score of 8.6 reflects a critical severity level driven primarily by catastrophic confidentiality impacts. Successful exploitation enables an unauthenticated attacker with network access via SSH to compromise the Siebel CRM Cloud Applications environment. Beyond the immediate application layer, attacks leveraging this flaw can significantly impact additional products within the broader Oracle ecosystem, indicating a potential for lateral movement or cross-product contamination that expands the blast radius beyond the initially affected component. The primary consequence is unauthorized access to critical data stored within the system. Depending on the specific configuration and privileges associated with the compromised SSH session, attackers may achieve complete access to all Siebel CRM Cloud Applications accessible data. This includes sensitive customer information, proprietary business logic, financial records, and other confidential assets protected by enterprise-grade security controls that are effectively neutralized by this vulnerability.
From a classification perspective, this flaw aligns closely with CWE-287 Improper Authentication, as the system fails to adequately verify the identity of users attempting to access resources via SSH. Furthermore, the ability for an unauthenticated attacker to gain initial foothold and potentially escalate privileges or move laterally across products maps directly to MITRE ATT&CK techniques such as T1078 Valid Accounts if credentials are eventually harvested, but more immediately to T1190 Exploit Public-Facing Application given the network-accessible nature of the entry point. The scope change noted in the vulnerability description suggests that the security boundary is not strictly contained within Siebel CRM Cloud Applications, implying potential privilege escalation or container escape scenarios that allow influence over adjacent systems. This characteristic elevates the risk profile significantly, as a compromise in one area can cascade into broader infrastructure instability or data exfiltration across multiple service boundaries.
Mitigation strategies must prioritize immediate remediation due to the high severity and ease of exploitation. Organizations running affected versions should apply the latest security patches provided by Oracle for Siebel Cloud Manager immediately upon availability. In environments where patching is not instantly feasible, network-level controls such as strict firewall rules restricting SSH access to known administrative IP addresses can serve as a temporary compensating control. Additionally, implementing multi-factor authentication on all remote management interfaces and enforcing key-based SSH authentication while disabling password logins can reduce the attack surface. Continuous monitoring of SSH logs for anomalous connection attempts from untrusted sources is also recommended to detect potential exploitation activities in real-time. Regular vulnerability assessments focused on external-facing services are essential to ensure that such gaps do not persist within the enterprise security posture.