CVE-2026-91433

High

Description

Vulnerability in the Siebel Apps - Field Service product of Oracle Siebel CRM (component: Smart Answer). Supported versions that are affected are 17.0-26.9. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise Siebel Apps - Field Service. Successful attacks of this vulnerability can result in takeover of Siebel Apps - Field Service. 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).

SeverityHigh

CVSS7.2

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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