BaseFortify

Publication date: 2026-01-20

Last updated on: 2026-01-29

Assigner: Oracle

Description

Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure). Supported versions that are affected are 17.0-25.2. Easily exploitable vulnerability allows unauthenticated attacker with network access via TLS to compromise Siebel CRM Deployment. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Siebel CRM Deployment. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

CVSS Scores

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Meta Information

Published

2026-01-20

Last Modified

2026-01-29

Generated

2026-07-06

AI Q&A

2026-01-21

EPSS Evaluated

2026-07-05

NVD

CVE-2026-21926

EUVD

EUVD-2026-3583

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	siebel_customer_relationship_management_deployment	From 17.0 (inc) to 25.2 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-NVD-CWE-noinfo

Attack-Flow Graph

Executive Summary

This vulnerability exists in the Oracle Siebel CRM Deployment product, specifically in the Server Infrastructure component. It allows an unauthenticated attacker with network access via TLS to exploit the system easily. The attacker can cause the Siebel CRM Deployment to hang or crash repeatedly, resulting in a complete denial of service (DoS).

Impact Analysis

The impact of this vulnerability is a complete denial of service (DoS) on the Siebel CRM Deployment. An attacker can cause the system to hang or crash frequently, disrupting availability and potentially halting business operations that rely on this CRM deployment.

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