CVE-2026-83211

Received Received - Intake

Authentication Bypass in Oracle Siebel CRM Deployment

Publication date: 2026-09-15

Last updated on: 2026-09-15

Assigner: Oracle

Description

Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure). Supported versions that are affected are 17.0-26.7. Easily exploitable vulnerability allows low 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 7.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

CVSS Scores

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Meta Information

Published

2026-09-15

Last Modified

2026-09-15

Generated

2026-10-07

AI Q&A

2026-09-16

EPSS Evaluated

2026-10-05

NVD

CVE-2026-83211

EUVD

EUVD-2026-79563

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	siebel_crm_deployment	From 17.0 (inc) to 26.7 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle Siebel CRM Deployment (versions 17.0-26.7) that allows a low-privileged attacker with local access to compromise the system. Successful exploitation could lead to full takeover of the Siebel CRM Deployment infrastructure.

Impact Analysis

An attacker could gain control over the Siebel CRM Deployment system, potentially accessing sensitive data, modifying system configurations, or disrupting services. This could lead to data breaches, unauthorized changes, or system downtime.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, which may violate compliance requirements under GDPR, HIPAA, or other regulations. Organizations using affected versions must address this to maintain compliance.

Mitigation Strategies

Apply the latest Oracle Siebel CRM patches or updates for versions 17.0-26.7 to address the vulnerability. Restrict user privileges to minimize access for low-privileged attackers. Monitor Siebel CRM Deployment logs for suspicious activity.

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