CVE-2026-83086

Received Received - Intake

Authentication Bypass in Siebel CRM Cloud Applications

Publication date: 2026-09-15

Last updated on: 2026-09-15

Assigner: Oracle

Description

Vulnerability in the Siebel CRM Cloud Applications product of Oracle Siebel CRM (component: Siebel Cloud Manager). Supported versions that are affected are 22.3-26.7. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Siebel CRM Cloud Applications. Successful attacks of this vulnerability can result in takeover of Siebel CRM Cloud Applications. 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).

CVSS Scores

EPSS 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-2026-83086

EUVD

EUVD-2026-79414

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	siebel_crm_cloud_applications	From 22.3 (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 Cloud Applications affecting versions 22.3 to 26.7. It allows a low-privileged attacker with network access via HTTP to compromise the system and potentially take over the Siebel CRM Cloud Applications entirely.

Impact Analysis

If exploited, this vulnerability could lead to a complete takeover of the Siebel CRM Cloud Applications. This means an attacker could gain full control over the system, potentially accessing, modifying, or deleting sensitive data, disrupting services, or using the compromised system for further attacks.

Compliance Impact

The vulnerability allows takeover of Siebel CRM Cloud Applications, which could lead to unauthorized access to sensitive data. This may impact compliance with GDPR (data protection) and HIPAA (healthcare data) due to potential breaches of confidentiality and integrity of personal or health information.

Mitigation Strategies

Apply the latest Oracle Siebel CRM Cloud Applications patches immediately as they address this vulnerability. Ensure network access controls restrict HTTP access to only trusted sources and limit low-privileged user permissions to reduce attack surface.

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