CVE-2026-91424

HTTP Access Control Vulnerability in Oracle Siebel CRM Deployment Enables Unauthorized Data Modification and Denial of Service

Published Oct 20, 2026 CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed
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).

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Oracle siebel Crm
CPEs cpe:2.3:a:oracle:siebel_crm:*:*:*:*:*:*:*:*
Vendors & Products Oracle siebel Crm
Type Values Removed Values Added
Metrics ssvc

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

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
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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
oracle
Published
Updated
Oct 23, 2026, 8:09 PM
Reserved
Sep 14, 2026, 10:10 PM
Status
Analyzed
Published
Oct 20, 2026, 10:20 PM
Modified
Nov 4, 2026, 3:09 PM