CVE-2026-101525 in Enterprise Manager for Siebel
Summary
by MITRE • 10/21/2026
Vulnerability in the Oracle Enterprise Manager for Siebel product of Oracle Enterprise Manager (component: Configuration Management). Supported versions that are affected are 13.5 and 24.1. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Enterprise Manager for Siebel. Successful attacks of this vulnerability can result in takeover of Oracle Enterprise Manager for Siebel. 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 • 10/21/2026
The identified vulnerability resides within the Configuration Management component of Oracle Enterprise Manager for Siebel, specifically affecting versions 13.5 and 24.1. This security flaw represents a critical weakness in the application's access control mechanisms, allowing an attacker with low privileges to execute unauthorized actions that lead to complete system compromise. The nature of this vulnerability aligns closely with CWE-862, which describes Missing Authorization, where the software does not perform sufficient checks on user permissions before executing sensitive operations. Furthermore, given the network-based exploitation vector and the ability for a single attacker without interaction from other users, it maps directly to MITRE ATT&CK technique T1078, Valid Accounts, indicating that authenticated attackers can leverage their existing credentials to escalate privileges or bypass security controls effectively.
The technical flaw enables an easily exploitable attack path over HTTP, requiring no user interface interaction and possessing low complexity for exploitation. This means that once a threat actor obtains valid but low-privileged credentials within the Oracle Enterprise Manager environment, they can send crafted requests directly to the server via standard web protocols. The absence of proper authorization checks allows these requests to trigger administrative or privileged functions intended only for higher-level users. Consequently, the attacker gains the ability to manipulate system configurations, access sensitive data, and alter critical settings without detection by default security monitoring tools that may not flag low-privilege accounts performing high-impact actions.
The operational impact of this vulnerability is severe, as indicated by a CVSS 3.1 Base Score of 8.8, classified as High severity. The vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) confirms that the compromise affects all three pillars of information security: confidentiality, integrity, and availability. An attacker achieving successful exploitation can take full control of the Oracle Enterprise Manager for Siebel instance. This takeover allows for the exfiltration of confidential enterprise data, modification or deletion of critical configuration files leading to service disruption, and potentially using the compromised management server as a pivot point to attack other systems within the network infrastructure. The lack of scope change (S:U) indicates that while the impact is contained primarily to this specific component, the consequences for the managed Siebel environment are catastrophic due to its central role in enterprise operations.
To mitigate this risk, organizations must immediately apply the latest security patches provided by Oracle for versions 13.5 and 24.1 of Oracle Enterprise Manager for Siebel. Until patching is feasible, implementing strict network segmentation to limit HTTP access from untrusted networks can reduce the attack surface. Additionally, enforcing multi-factor authentication and regularly auditing user privileges ensures that low-privileged accounts have minimal permissions necessary for their roles, adhering to the principle of least privilege. Deploying Web Application Firewalls with rules specifically targeting known exploitation patterns for this vulnerability can also provide an additional layer of defense against automated attacks leveraging this configuration management flaw.