CVE-2026-101437 in Siebel CRM Cloud Applications
Summary
by MITRE • 10/21/2026
Vulnerability in the Siebel CRM Cloud Applications product of Oracle Siebel CRM (component: Siebel Cloud Manager). Supported versions that are affected are 22.3-26.9. Difficult to exploit vulnerability allows high privileged attacker with network access via HTTP 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 creation, deletion or modification access to critical data or all Siebel CRM Cloud Applications accessible data as well as unauthorized read access to a subset of Siebel CRM Cloud Applications accessible data. CVSS 3.1 Base Score 6.6 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:H/A:N).
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 10/21/2026
The identified vulnerability resides within the Siebel Cloud Manager component of Oracle Siebel CRM, specifically affecting supported versions ranging from 22.3 through 26.9. This security flaw represents a significant risk to organizations relying on this enterprise customer relationship management platform for critical business operations. The core issue stems from an architectural weakness in how the cloud manager handles administrative requests over HTTP protocols. Although the vulnerability is technically located within the Siebel CRM Cloud Applications infrastructure, its exploitation can lead to a scope change where additional products or interconnected systems are compromised. This lateral movement capability amplifies the potential blast radius of a successful attack beyond the immediate application boundary, potentially exposing broader organizational data assets that were not originally intended as direct targets but remain accessible through shared authentication contexts or integrated service endpoints.
From a technical perspective, this vulnerability is characterized by its difficulty to exploit and the high level of privilege required for initiation. An attacker must possess network access via HTTP and hold high privileged credentials within the Siebel environment before any malicious action can be attempted. This requirement suggests that the flaw likely involves complex logic errors or race conditions in administrative API endpoints rather than simple injection flaws, making automated exploitation difficult but not impossible once initial foothold is established through credential theft or insider threats. The absence of user interaction requirements means that if an attacker obtains valid high-level credentials, they can execute attacks without needing to trick end-users into clicking malicious links or opening infected files, thereby increasing the efficiency and stealthiness of potential intrusion campaigns.
The operational impact of this vulnerability is severe due to its direct effect on data confidentiality and integrity while leaving availability intact. Successful exploitation allows an unauthorized actor to create, delete, or modify critical data within Siebel CRM Cloud Applications with unrestricted scope across all accessible data sets. This capability fundamentally breaks the trust model of the application, allowing attackers to alter customer records, financial transactions, sales pipelines, and other sensitive business intelligence. Furthermore, the vulnerability grants unauthorized read access to a subset of accessible data, enabling espionage activities where competitors or malicious actors can exfiltrate proprietary information for strategic advantage or future blackmail. The combination of write and read privileges creates a comprehensive compromise scenario where an attacker can both steal secrets and corrupt operational records to disrupt business continuity or manipulate decision-making processes based on falsified data.
In terms of industry classification, this vulnerability aligns with CWE-269 Improper Privilege Management due to the requirement for high privileged access and CWE-352 Cross-Site Request Forgery if HTTP request manipulation is involved in the exploitation chain. From a tactical standpoint, it maps to MITRE ATT&CK techniques such as T1078 Valid Accounts for initial credential abuse and potentially T1496 Resource Hijacking or data exfiltration methods depending on how the stolen data is transmitted out of the network environment. The CVSS 3.1 base score of 6.6 reflects a medium severity rating, driven by high attack complexity and privilege requirements but mitigated slightly by low confidentiality impact relative to the high integrity impact. This scoring indicates that while immediate emergency patching may not be mandated for all environments based solely on this metric, the risk profile warrants urgent attention due to the potential for significant business disruption and data loss.
Mitigation strategies must focus primarily on strict access control and network segmentation given the difficulty of exploiting the flaw without high privileges. Organizations should enforce multi-factor authentication for all administrative accounts associated with Siebel Cloud Manager to reduce the likelihood of credential compromise leading to exploitation. Network-level controls such as Web Application Firewalls can be configured to detect anomalous HTTP request patterns that may indicate attempts to exploit this specific vulnerability, although signature-based detection might be limited due to the complexity of the attack vector. Regular auditing of administrative actions and monitoring for unusual data modification or deletion events are critical defensive measures. Additionally, Oracle should apply all available security patches promptly as updates typically address these logic flaws by hardening input validation on privileged endpoints. Until patches are applied, limiting HTTP access to Siebel Cloud Manager components to only trusted internal IP ranges can significantly reduce the attack surface and protect against remote exploitation attempts from external networks.