CVE-2026-47036 in Siebel CRM Development
Summary
by MITRE • 07/22/2026
Vulnerability in the Siebel CRM Development product of Oracle Siebel CRM (component: Siebel Approval Manager). Supported versions that are affected are 17.0-26.3. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel CRM Development. Successful attacks of this vulnerability can result in takeover of Siebel CRM Development. 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 • 07/22/2026
This vulnerability exists within Oracle Siebel CRM Development product specifically in the Siebel Approval Manager component affecting versions 17.0 through 26.3. The flaw represents a critical security weakness that can be exploited by unauthenticated attackers who gain network access through HTTP protocols. The vulnerability's ease of exploitation means that threat actors with minimal technical skills can potentially compromise the entire Siebel CRM Development environment without requiring any authentication credentials or prior access privileges.
The technical nature of this vulnerability stems from insufficient authentication mechanisms within the HTTP communication channels of the Siebel Approval Manager component. This weakness allows attackers to bypass normal access controls and directly interact with the application's backend services. The CVSS 3.1 scoring of 9.8 indicates a severe impact across all three core security principles: confidentiality, integrity, and availability. Attackers who successfully exploit this vulnerability can achieve complete system compromise, potentially gaining administrative control over the entire Siebel CRM Development infrastructure.
From an operational perspective, successful exploitation of this vulnerability creates significant business risks including unauthorized data access, modification of critical approval workflows, and potential disruption of enterprise operations. The unauthenticated nature of the attack means that organizations cannot rely on standard authentication controls to prevent compromise. This vulnerability directly impacts the integrity of business processes managed by Siebel Approval Manager, which typically handles critical approval workflows for financial transactions, user access requests, and other sensitive business operations.
The security implications extend beyond immediate system compromise to include potential data breaches and regulatory compliance violations. Organizations using affected Siebel CRM versions may face significant operational disruption and financial losses if this vulnerability is exploited. The impact affects both the confidentiality of sensitive business data and the availability of critical approval processes that organizations depend upon for proper governance and control.
Organizations should immediately apply Oracle's security patches and updates to address this vulnerability. Network segmentation and firewall rules should be implemented to restrict access to Siebel CRM services where possible, though this may not provide complete protection given the unauthenticated nature of the exploit. Monitoring for suspicious network activity and implementing intrusion detection systems can help identify potential exploitation attempts. Additionally, organizations should conduct comprehensive security assessments of their Siebel CRM environments to identify any other potential vulnerabilities that could be exploited in conjunction with this weakness.
This vulnerability aligns with CWE-287 which addresses improper authentication issues, and represents a significant risk under the ATT&CK framework's privilege escalation and persistence tactics. The ease of exploitation makes it particularly dangerous for organizations without proper network security controls or up-to-date patch management processes in place.