Vulnerability · Published Oct 20, 2026 · Assigned by oracle

CVE-2026-91433

High 7.2

In plain English

A high-severity missing authentication in Siebel Apps - Field Service from Oracle Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).

Severity (CVSS 3.1)7.2High

Exploit odds (30 days)0.5%top 60.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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).

Affected products (as reported)

Vendor	Product	Versions
Oracle Corporation	Siebel Apps - Field Service	17.0 – through 26.9

Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References

Oracle Advisory vendor-advisory