CVE-2026-73966

Received Received - Intake

Authentication Bypass in Siebel Apps Marketing

Publication date: 2026-09-15

Last updated on: 2026-09-15

Assigner: Oracle

Description

Vulnerability in the Siebel Apps - Marketing product of Oracle Siebel CRM (component: Marketing). Supported versions that are affected are 17.0-26.7. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise Siebel Apps - Marketing. Successful attacks of this vulnerability can result in takeover of Siebel Apps - Marketing. CVSS 3.1 Base Score 7.2 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).

CVSS Scores

EPSS Scores

Probability:
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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

2026-10-05

NVD

CVE-2026-73966

EUVD

EUVD-2026-79319

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	siebel_apps_marketing	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's Siebel Apps - Marketing product affecting versions 17.0 to 26.7. It allows a high-privileged attacker with network access via HTTP to take over the system. The vulnerability has a CVSS base score of 7.2, indicating significant impact on confidentiality, integrity, and availability.

Detection Guidance

Detection of this vulnerability requires monitoring for unauthorized access or unusual activity in the Siebel Apps - Marketing component. Check Oracle's official security advisories for patches or updates. Inspect HTTP traffic logs for suspicious requests targeting the affected component. Ensure high-privileged accounts are not used for routine operations.

Impact Analysis

If exploited, this vulnerability could allow an attacker to fully compromise the Siebel Apps - Marketing system. This could lead to unauthorized access, data theft, system manipulation, or complete system takeover, potentially disrupting business operations.

Compliance Impact

This vulnerability could lead to breaches of sensitive data, violating regulations like GDPR or HIPAA. Organizations using affected versions may face compliance failures, legal penalties, and reputational damage due to unauthorized data access or loss.

Mitigation Strategies

Apply the latest Oracle Critical Patch Update (CPU) for Siebel Apps - Marketing to address the vulnerability. Ensure network access controls restrict unauthorized HTTP access to the component. Monitor for suspicious activity and restrict high-privilege user access where possible.

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