CVE-2026-21926
Unknown Unknown - Not Provided
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).
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Meta Information
Published
2026-01-20
Last Modified
2026-01-29
Generated
2026-06-16
AI Q&A
2026-01-21
EPSS Evaluated
2026-06-15
NVD
CVE-2026-21926
EUVD
EUVD-2026-3583
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
oracle siebel_customer_relationship_management_deployment From 17.0 (inc) to 25.2 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-NVD-CWE-noinfo
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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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