TI-2026-77488 Aliases CVE-2026-91433 GHSA-c69w-wwqf-2mc4

Missing authentication in Oracle Siebel Field Service Smart Answer

LOW 34CWE-306Published 2026-10-20 · Updated 2026-10-23

Key facts

Attack vector: Network
Privileges required: High
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-306.

Summary

Oracle Siebel CRM Siebel Apps - Field Service, versions from 17.0 through 26.9, is affected. The Smart Answer component has missing authentication for critical functionality (CWE-306). A remote attacker with high privileges and HTTP access to the network can take over Siebel Apps - Field Service.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Description from the CNA

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).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00453 39th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Oracle	Siebel Apps - Field Service	17.0 – 26.9	—	No fix listed	CNA

Siebel Apps - Field Service VendorOracle Affected 17.0 – 26.9 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:oracle:siebel_crm::::::::	17.0 – 26.9	Vulnerable	Oracle

cpe:2.3:a:oracle:siebel_crm:*:*:*:*:*:*:*:* Versions 17.0 – 26.9 Vulnerable ·Oracle

Remediation

The sources list no fixed version for Oracle Siebel Apps - Field Service.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Timeline

2026-10-21 Threatist record created from CVE-2026-91433
2026-10-21 Alias added: GHSA-c69w-wwqf-2mc4
2026-10-22 Priority changed: MEDIUM → LOW
2026-10-24 Weakness changed · CISA ADP
2026-10-24 CISA SSVC decision points changed

References

Advisory 1

Oracle Advisory

TI-2026-44706 Improper access control in Oracle Siebel CRM Integration CVSS 3.1CRITICAL 9.8
TI-2026-44699 Improper access control in Oracle Siebel CRM Administration CVSS 3.1CRITICAL 9.8
TI-2026-44566 Improper access control in Oracle Siebel CRM Cloud Applications CVSS 3.1CRITICAL 9.9
TI-2026-43962 Improper access control in Oracle Siebel CRM Cloud Applications CVSS 3.1CRITICAL 9.8
TI-2026-34639 Missing authentication in Oracle Siebel CRM Development CVSS 3.1CRITICAL 9.8
TI-2026-34525 Improper access control in Oracle Siebel CRM Cloud Applications CVSS 3.1CRITICAL 9.8

See all 244 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences