CVE-2026-91392

Low

Description

Vulnerability in the Siebel CRM End User product of Oracle Siebel CRM (component: Open UI). Supported versions that are affected are 17.0-26.9. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel CRM End User. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Siebel CRM End User accessible data. CVSS 3.1 Base Score 3.7 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N).

SeverityLow

CVSS3.7

Exploit probability—

Product

Oracle Siebel Crm

PublishedOct 20, 2026

First seenOct 20, 2026

Weakness typeCWE-306Missing authentication for critical function

How to fix

Vendor advisories

oracle.com/security-alerts/cpuoct2026.html

Affected products

Product	Affected versions	Fixed in
oracle siebel_crm	17.0 ≤ v ≤ 26.9	—

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