CVE-2026-62595 in Siebel CRM Integration
Summary
by MITRE • 08/19/2026
Vulnerability in the Siebel CRM Integration product of Oracle Siebel CRM (component: Open Integration). Supported versions that are affected are 25.12-26.6. Easily exploitable vulnerability allows unauthenticated attacker with access to the physical communication segment attached to the hardware where the Siebel CRM Integration executes to compromise Siebel CRM Integration. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Siebel CRM Integration accessible data as well as unauthorized access to critical data or complete access to all Siebel CRM Integration accessible data. CVSS 3.1 Base Score 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).
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Analysis
by VulDB Data Team • 08/19/2026
The vulnerability identified in Oracle Siebel CRM Integration, specifically within the Open Integration component, represents a significant security risk for organizations relying on this enterprise resource planning and customer relationship management platform. The affected software versions span from 25.12 through 26.6, indicating that a substantial portion of deployed instances may be susceptible to exploitation if proper network segmentation is not enforced. This flaw allows an unauthenticated attacker who has physical access to the communication segment attached to the hardware hosting the Siebel CRM Integration service to compromise the system. The classification of this vulnerability as easily exploitable underscores its severity, particularly because it does not require user interaction or complex preconditions beyond network proximity.
From a technical perspective, the core issue lies in insufficient authentication mechanisms within the Open Integration interface when accessed via specific physical communication segments. This architectural weakness permits unauthorized entities to interact directly with critical system functions without providing valid credentials. The absence of robust access controls at this layer means that any device connected to the same network segment can attempt to execute commands or query data structures intended for authorized administrative users only. This lack of boundary protection between internal systems and external networks, even within a trusted physical environment, creates an attack vector that bypasses traditional perimeter defenses such as firewalls which typically rely on logical rather than physical isolation.
The operational impact of this vulnerability is severe, primarily affecting the confidentiality and integrity of data managed by Siebel CRM Integration. Successful exploitation enables attackers to create, delete, or modify critical business data with no restriction. This capability extends beyond mere data theft; it allows for the alteration of records which can lead to significant financial loss, regulatory non-compliance, and reputational damage. Furthermore, complete access to all accessible data means that sensitive customer information, proprietary business strategies, and internal communications are exposed. The CVSS 3.1 base score of 8.1 reflects this high level of risk, driven by the high impact on both confidentiality and integrity while noting no direct impact on availability in the standard scoring model, although operational disruption is a likely secondary consequence of data manipulation.
In terms of industry standards mapping, this vulnerability aligns with CWE-287 Improper Authentication, as the system fails to adequately verify the identity of users attempting to access resources. Additionally, it relates to CWE-306 Missing Authentication for Critical Function, where specific administrative or critical operations are accessible without proper verification. From an offensive security perspective, such exploitation techniques fall under MITRE ATT&CK technique T1078 Valid Accounts if credentials were obtained through other means, but in this unauthenticated context, it more closely resembles direct network-based attacks categorized under initial access vectors that exploit misconfigured services on local networks. The attack vector AV:A indicates an Adjacent Network position, meaning the attacker must be able to reach the target system's network segment, which often implies a lack of micro-segmentation or VLAN isolation in the infrastructure design.
Mitigation strategies for this vulnerability require immediate attention from security operations and IT administration teams. Since the primary risk factor is physical access to the communication segment, organizations should implement strict network segmentation policies. This involves isolating critical enterprise applications like Siebel CRM Integration into dedicated virtual local area networks that are not accessible from general office or guest Wi-Fi segments. Access control lists on switches and routers should be configured to restrict traffic to only authorized IP addresses and ports associated with legitimate client applications. Additionally, deploying intrusion detection systems tuned for anomalous behavior in the integration layer can help identify exploitation attempts even if authentication is bypassed initially.
Long-term remediation involves applying the latest security patches provided by Oracle that address these specific flaws in the Open Integration component. Organizations should verify their current version against the supported range and prioritize updates to versions 25.12 through 26.6 where vulnerabilities exist. It is also advisable to conduct a thorough audit of network architecture to ensure that no critical services are exposed on unsegmented physical networks. Regular penetration testing focused on internal lateral movement can help identify similar weaknesses in other integrated systems, ensuring a holistic approach to securing the enterprise application environment against adjacent network threats.