CVE-2026-91444

Analyzed Analyzed - Analysis Complete

Privilege Escalation in Oracle Siebel CRM Deployment

Publication date: 2026-10-20

Last updated on: 2026-11-04

Assigner: Oracle

Description

Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure). Supported versions that are affected are 17.0-26.9. Easily exploitable vulnerability allows high privileged attacker with logon to the infrastructure where Siebel CRM Deployment executes to compromise Siebel CRM Deployment. Successful attacks of this vulnerability can result in takeover of Siebel CRM Deployment. CVSS 3.1 Base Score 6.7 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-10-20

Last Modified

2026-11-04

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-91444

EUVD

EUVD-2026-106694

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	siebel_crm	From 17.0 (inc) to 26.9 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-269	The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle Siebel CRM Deployment (versions 17.0-26.9) where a high-privileged attacker with local access can exploit it to take over the Siebel CRM Deployment system. The attack requires logon to the infrastructure where the software runs. The CVSS score is 6.7, indicating impacts on confidentiality, integrity, and availability.

Impact Analysis

If exploited, this vulnerability allows an attacker to fully compromise the Siebel CRM Deployment system. This could lead to unauthorized access to sensitive data, modification or deletion of critical information, and disruption of services, potentially causing operational and reputational damage.

Compliance Impact

This vulnerability could lead to breaches of data confidentiality and integrity, which may violate GDPR (data protection) and HIPAA (health information privacy) requirements. Organizations using affected versions may face compliance violations, legal penalties, and loss of trust due to unauthorized data exposure or tampering.

Mitigation Strategies

Apply the latest Oracle Siebel CRM patches or updates for versions 17.0-26.9 to address the vulnerability. Ensure only trusted users have high privileged access to the infrastructure where Siebel CRM Deployment executes.

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EPSS Chart

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