Description
Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure). Supported versions that are affected are 17.0-26.9. Difficult to exploit vulnerability allows low privileged attacker with network access via HTTP to compromise Siebel CRM Deployment. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Siebel CRM Deployment as well as unauthorized update, insert or delete access to some of Siebel CRM Deployment accessible data and unauthorized read access to a subset of Siebel CRM Deployment accessible data. CVSS 3.1 Base Score 6.4 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H).
Published: 2026-10-20
Score: 6.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Remote Unauthorized Data Modification and Denial of Service
Action: Immediate Patch
AI Analysis

Impact

This vulnerability allows a low‑privileged attacker with network access via HTTP to compromise Oracle Siebel CRM Deployment. An attacker can cause the system to hang or crash, and can also read, insert, update, or delete a subset of accessible data, giving unauthorized modification and disclosure of information. The CVSS score of 6.4 indicates moderate severity with moderate impacts on confidentiality and integrity and a high impact on availability.

Affected Systems

Oracle Siebel CRM Deployment, versions 17.0 through 26.9 are affected.

Risk and Exploitability

The CVSS score reflects a moderate risk, and although the EPSS score is not available, the lack of a KEV listing suggests that widespread exploitation has not yet been observed. The likely attack vector is remote over HTTP, and only a low‑privileged attacker with network access is required to exploit this weakness, making the vulnerability a concern for systems exposed to untrusted networks.

Generated by OpenCVE AI on October 21, 2026 at 10:06 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the latest Oracle Siebel CRM Deployment patch released in the October 2026 CPU that addresses the access‑control flaw.
  • If a patch is not immediately available, restrict HTTP traffic to the Siebel servers to trusted IP addresses using firewall or VPN controls.
  • Enable logging and alerting on the Siebel deployment to detect repeated crashes or unusual read/write activity, and investigate any anomalies promptly.

Generated by OpenCVE AI on October 21, 2026 at 10:06 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Wed, 04 Nov 2026 15:15:00 +0000

Type Values Removed Values Added
First Time appeared Oracle siebel Crm
CPEs cpe:2.3:a:oracle:siebel_crm:*:*:*:*:*:*:*:*
Vendors & Products Oracle siebel Crm

Fri, 23 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 21 Oct 2026 10:30:00 +0000

Type Values Removed Values Added
Title HTTP Access Control Vulnerability in Oracle Siebel CRM Deployment Enables Unauthorized Data Modification and Denial of Service
Weaknesses CWE-284

Tue, 20 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Description Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure). Supported versions that are affected are 17.0-26.9. Difficult to exploit vulnerability allows low privileged attacker with network access via HTTP to compromise Siebel CRM Deployment. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Siebel CRM Deployment as well as unauthorized update, insert or delete access to some of Siebel CRM Deployment accessible data and unauthorized read access to a subset of Siebel CRM Deployment accessible data. CVSS 3.1 Base Score 6.4 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H).
First Time appeared Oracle
Oracle siebel Crm Deployment
CPEs cpe:2.3:a:oracle:siebel_crm_deployment:*:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle siebel Crm Deployment
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H'}


Subscriptions

Oracle Siebel Crm Siebel Crm Deployment
cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-10-23T20:09:26.961Z

Reserved: 2026-09-14T22:10:16.634Z

Link: CVE-2026-91424

cve-icon Vulnrichment

Updated: 2026-10-23T20:09:20.683Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-20T22:20:45.863

Modified: 2026-11-04T15:09:42.627

Link: CVE-2026-91424

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-22T19:00:16Z

Weaknesses