How severe is CVE-2026-91433?

High severity. CVSS v3 base score is 7.2 out of 10.

Vulnerability in Oracle Corporation Siebel Apps - Field Service

CVE-2026-91433

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).

Published 2026-10-20 · last modified 2026-10-21.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Oracle Corporation Siebel Apps - Field Service

References

www.oracle.com/security-alerts/cpuoct2026.html (vendor-advisory)

Frequently asked questions

What is CVE-2026-91433?: CVE-2026-91433 is a high-severity vulnerability in Oracle Corporation Siebel Apps - Field Service. CVSS score: 7.2/10. Published 2026-10-20.
How severe is CVE-2026-91433?: High severity. CVSS v3 base score is 7.2 out of 10.