CVE-2026-70957 is a cybersecurity risk found in Oracle Hyperion Infrastructure Technology, more precisely, in its Installation and Configuration module. The version that is mentioned in the CVE report is 11.2.25.0.000. The exploitability condition for the vulnerability is that the attacker needs to be a low-privileged user and have network access via HTTP protocol. The vulnerability has a CVSS v3.1 rating of 8.1 (High).
What Is CVE-2026-70957?
CVE-2026-70957 is an Oracle Hyperion Infrastructure Technology vulnerability, which may lead to attackers with low privileges being able to exploit the vulnerable software component via HTTP.
As per the description provided by Oracle for the CVE, it leads to the following security issues: Unauthorized creation, deletion or modification of critical data and unauthorized access to critical and other accessible data. The CVE was published on August 18, 2026, with Oracle being the CVE Numbering Authority (CNA).
What Is Oracle Hyperion Infrastructure Technology?
Oracle Hyperion Infrastructure Technology is an Oracle Hyperion/EPM technology platform and contains the infrastructure capabilities for Oracle Hyperion applications.
About this CVE, the CVE description indicates that the affected component is Installation and Configuration. However, the CVE description does not provide adequate technical details to explain the internal workings of the component.
Understanding the Installation and Configuration Component
The compromised module is named Installation and Configuration. CVE-2026-70957 is mentioned as a vulnerable version in this module for the 11.2.25.0.000. In any case, it must be emphasized that not all installations/configurations are vulnerable, as the official document states the compromised module.
How Does CVE-2026-70957 Work?
At a high level, the attack requires:
Low-privileged attacker → Network access → HTTP interface → Vulnerable Hyperion component → Unauthorized data access or modification
Vulnerability is considered easy to exploit, having low attack complexity, and needing no user interaction, according to the CVE record. Still, there is no mention of any URL, parameter, request, or PoC in the CVE description. Thus, all these facts cannot be invented in the blog.
Affected Oracle Hyperion Version
The Oracle CNA record identifies the following affected product and version:
- Vendor: Oracle Corporation
- Product: Oracle Hyperion Infrastructure Technology
- Affected version: 11.2.25.0.000
- Affected component: Installation and Configuration
The CVE record does not list additional affected versions, so you should not claim that older or newer versions are affected unless Oracle provides additional information.
Attack Vector and Exploitation Conditions
The official CVSS vector is:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
This means:
- Attack Vector (AV: N): Network
- Attack Complexity (AC: L): Low
- Privileges Required (PR: L): Low
- User Interaction (UI: N): None
- Scope (S: U): Unchanged
- Confidentiality (C:H): High
- Integrity (I:H): High
- Availability (A: N): None
So, vulnerability does require some privileges. It should not be described as an unauthenticated vulnerability based on the official CVSS vector.
Important Accuracy Point
CVE-2026-70957 will not be considered an RCE vulnerability unless there is a trusted advisory that proves the presence of remote code execution. According to the official record of the CVE, the effects of the vulnerability are unauthorized access, as well as the unauthorized creation, deletion, or modification of data. In your blog post, this information can safely be used as the basis of your facts.
CVSS Score and Severity of CVE-2026-70957
- CVSS v3.1 Base Score: 8.1 (HIGH)
- CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Severity Rating: High
- Affected Product & Component: Oracle Siebel CRM (Component: EAI – Enterprise Application Integration)
- Affected Versions: Version 25.1 and prior
Impact of CVE-2026-70957
CVE-2026-70957 is a vulnerability in the Enterprise Application Integration module of Oracle Siebel CRM that can be exploited easily. The exploit takes advantage of the ability of a remote and unauthenticated attacker to use HTTP/HTTPS connectivity to break into the application through user interaction.For successful exploitation, user interaction from any user other than the attacker would be required, and the operational impact would be:
- High Confidentiality Breach: Unauthenticated attackers can gain unauthorized read access to sensitive customer relationship data, business records, and administrative configuration files within Siebel CRM.
- High Integrity Loss: Enables unauthorized creation, modification, or deletion of core application records and integration mappings.
- High Availability Disruption: Attackers can disrupt enterprise workflows or induce system crashes across affected Siebel CRM integration services.
How to Fix CVE-2026-70957
- Apply Official Oracle Security Patch: Download and install the security patch specified in the Oracle Critical Patch Update (CPU) Advisory – August 2026 for Siebel CRM Version 25.1.
- Restrict Access to EAI Endpoints: Restrict external access to Siebel Enterprise Application Integration endpoints using firewalls or Web Application Firewalls (WAF) to minimize exposure to untrusted networks.
- Verify Deployment: After applying the patch, restart the Oracle Siebel Application Server services and audit system build logs to verify patch installation.
Frequently Asked Questions (FAQs)
Conclusion
CVE-2026-70957 poses a serious threat (CVSS 8.1) to entities using Oracle Siebel CRM in business processes. Since vulnerability permits unauthenticated remote modification of CRM information due to interaction by users, it is recommended that system administrators update their systems through security patches made available by Oracle in its Critical Patch Update advisory of August 2026.
