CVE-2026-61330 in Siebel CRM Cloud Applications
Summary
by MITRE • 08/19/2026
Vulnerability in the Siebel CRM Cloud Applications product of Oracle Siebel CRM (component: Siebel Cloud Manager). Supported versions that are affected are 22.3-26.6. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Siebel CRM Cloud Applications. Successful attacks of this vulnerability can result in takeover of Siebel CRM Cloud Applications. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
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Analysis
by VulDB Data Team • 08/19/2026
The identified vulnerability resides within the Siebel Cloud Manager component of Oracle Siebel CRM, specifically affecting supported versions ranging from 22.3 through 26.6. This security flaw represents a critical risk to organizations relying on this enterprise customer relationship management platform for their operational workflows and data integrity. The core issue stems from an architectural or implementation deficiency within the cloud manager interface that permits unauthorized access control bypasses, allowing individuals with low-privileged accounts to execute actions beyond their intended permissions. Because the vulnerability is easily exploitable via network access through HTTP without requiring user interaction, it presents a significant attack surface for malicious actors targeting enterprise infrastructure. The ability of an attacker to leverage this flaw effectively neutralizes the security boundaries established by standard role-based access controls, leading directly to the complete compromise of the Siebel CRM Cloud Applications environment.
From a technical perspective, the vulnerability aligns with CWE-269, which classifies Improper Privilege Management, and potentially CWE-732, involving Incorrect Permission Assignment for Critical Resources. The attack vector is classified as Network (AV:N) with Low Complexity (AC:L), indicating that no specialized conditions or complex setup are required to exploit the flaw beyond having network connectivity to the target system. Crucially, the requirement for Privileges (PR:L) means that an attacker does not need administrative rights initially; a standard user account is sufficient to trigger the exploitation chain. The absence of User Interaction (UI:N) further lowers the barrier to entry, as social engineering or phishing tactics are unnecessary for successful execution. This combination of factors creates a high-severity scenario where automated scanning tools could rapidly identify and exploit vulnerable instances across an organization's network perimeter.
The operational impact of this vulnerability is severe, characterized by a CVSS 3.1 Base Score of 8.8 out of 9.0, reflecting substantial impacts on Confidentiality, Integrity, and Availability (CIA triad). A successful exploitation results in the complete takeover of Siebel CRM Cloud Applications, granting the attacker full control over the application environment. This level of compromise allows for extensive data exfiltration, including sensitive customer information, financial records, and proprietary business strategies stored within the CRM database. Furthermore, an attacker can modify or delete critical configuration settings, leading to service disruptions that impact availability. The integrity of the system is also compromised as malicious actors can inject false data into sales pipelines or alter user permissions to maintain persistent access. This scenario mirrors techniques observed in MITRE ATT&CK framework under T1078 Valid Accounts and T1528 Steal Application Access Token, where adversaries leverage legitimate credentials to move laterally and escalate privileges within the target environment.
Mitigation strategies must prioritize immediate remediation due to the high exploitability and impact of this flaw. Organizations should apply the latest security patches provided by Oracle for Siebel CRM versions 22.3 through 26.6 as soon as they are available in their respective maintenance windows. In environments where patching is delayed, network segmentation strategies should be implemented to restrict HTTP access to the Siebel Cloud Manager component exclusively from trusted management networks or jump hosts. Additionally, implementing strict Web Application Firewall rules can help detect and block anomalous traffic patterns associated with privilege escalation attempts. Security teams must also enforce multi-factor authentication for all administrative accounts and review existing user permissions to ensure that low-privileged users do not possess unnecessary access rights to sensitive modules within the CRM system. Continuous monitoring of audit logs for unusual activity, such as unexpected configuration changes or data exports by standard users, is essential for early detection of exploitation attempts while preventive measures are being deployed.