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 unauthenticated attacker with network access via HTTP to compromise Siebel CRM Deployment. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Siebel CRM Deployment accessible data as well as unauthorized access to critical data or complete access to all Siebel CRM Deployment accessible data. CVSS 3.1 Base Score 7.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N).
Published: 2026-10-20
Score: 7.4 High
EPSS: < 1% Very Low
KEV: No
Impact: Confidentiality and integrity compromise through unauthorized data modification and access
Action: Patch
AI Analysis

Impact

The vulnerability resides in the Server Infrastructure component of Oracle Siebel CRM Deployment. An unauthenticated attacker with network access over HTTP can exploit the flaw to create, delete, or modify critical data and gain unauthorized access to all data stored within the deployment. The attack enables full control over data confidentiality and integrity without affecting availability.

Affected Systems

Affected is the Oracle Siebel CRM Deployment product, versions 17.0 through 26.9. These releases contain the flawed Server Infrastructure component. Any installation within this version range is susceptible and should be verified against the Oracle advisory for specific fix or upgrade paths.

Risk and Exploitability

The CVSS base score of 7.4 indicates a high potential impact on confidentiality and integrity. Exploitation requires an unauthenticated network attacker and is considered difficult, resulting in a very low EPSS score of < 1%. The vulnerability is not listed in the CISA KEV catalog, implying no confirmed exploitation yet. Nevertheless, the severity justifies prompt remediation.

Generated by OpenCVE AI on October 24, 2026 at 06:51 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the latest Oracle Siebel CRM Deployment patch or upgrade to a fixed release as released by Oracle
  • Ensure that all exposed HTTP endpoints require authentication and enforce role‑based permissions to prevent unauthorized operations, addressing the missing authentication and improper access control weaknesses
  • Restrict network access to the deployment with firewall rules or IP whitelisting, and, if possible, place the service behind an application gateway or WAF to shield it from unauthenticated traffic

Generated by OpenCVE AI on October 24, 2026 at 06:51 UTC.

Tracking

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Advisories

No advisories yet.

History

Wed, 04 Nov 2026 14:30:00 +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

Sat, 24 Oct 2026 07:15:00 +0000

Type Values Removed Values Added
Title Unauthenticated HTTP Data Modification in Oracle Siebel CRM Deployment

Sat, 24 Oct 2026 05:45:00 +0000

Type Values Removed Values Added
Title Unauthenticated HTTP Remote Data Modification in Oracle Siebel CRM Deployment
Weaknesses CWE-200
CWE-788

Sat, 24 Oct 2026 03:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-306
Metrics ssvc

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

Wed, 21 Oct 2026 10:15:00 +0000

Type Values Removed Values Added
Title Unauthenticated HTTP Remote Data Modification in Oracle Siebel CRM Deployment
Weaknesses CWE-200
CWE-788

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 unauthenticated attacker with network access via HTTP to compromise Siebel CRM Deployment. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Siebel CRM Deployment accessible data as well as unauthorized access to critical data or complete access to all Siebel CRM Deployment accessible data. CVSS 3.1 Base Score 7.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N).
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': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}

Subscriptions

Oracle Siebel Crm Siebel Crm Deployment
cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-10-24T02:55:36.174Z

Reserved: 2026-09-14T22:10:16.635Z

Link: CVE-2026-91449

cve-icon Vulnrichment

Updated: 2026-10-24T02:55:30.012Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-20T22:20:48.590

Modified: 2026-11-04T14:22:38.903

Link: CVE-2026-91449

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-24T07:00:16Z

Weaknesses
  • CWE-306

    Missing Authentication for Critical Function