CVE-2026-83155

Received Received - Intake

Siebel CRM Deployment Privilege Escalation Vulnerability

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 access to the physical communication segment attached to the hardware where the Siebel CRM Deployment executes to compromise Siebel CRM Deployment. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Siebel CRM Deployment accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Siebel CRM Deployment. CVSS 3.1 Base Score 7.3 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H).

CVSS Scores

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Meta Information

Published

2026-09-15

Last Modified

2026-09-15

Generated

2026-10-06

AI Q&A

2026-09-16

EPSS Evaluated

2026-10-04

NVD

CVE-2026-83155

EUVD

EUVD-2026-79482

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 to 26.7. It allows a low-privileged attacker with physical network access to exploit the system. Successful exploitation can lead to unauthorized access to sensitive data or cause the system to crash repeatedly.

Detection Guidance

Detection requires monitoring network traffic for unauthorized access attempts to the Siebel CRM Deployment server. Check for unusual data access patterns or repeated crashes in the server logs. Ensure physical network segment monitoring is in place as the attacker requires access to the same segment.

Impact Analysis

If you use Oracle Siebel CRM Deployment versions 17.0 to 26.7, an attacker with physical network access could steal critical data or disrupt system availability by causing crashes. This may lead to data breaches or operational downtime.

Compliance Impact

This vulnerability could lead to unauthorized data access, which may violate GDPR (data protection) and HIPAA (health data privacy) requirements. Organizations must address this to maintain compliance and avoid penalties.

Mitigation Strategies

Apply the latest Oracle Siebel CRM patches for versions 17.0-26.7 to address the vulnerability in the Server Infrastructure component.

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