CVE-2026-70910

Unauthenticated REST API allows sensitive data exposure in Siebel CRM Integration

Published Aug 18, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Description

Vulnerability in the Siebel CRM Integration product of Oracle Siebel CRM (component: REST). Supported versions that are affected are 17.0-26.6. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel CRM Integration. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Siebel CRM Integration accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

Analysis

Technical impact

A recently announced weakness in Oracle Siebel CRM Integration’s REST component permits an unauthenticated user with network access over HTTP to read critical data. The flaw is easy to exploit and can lead to complete access to all data that the integration can reach. The CVSS 3.1 base score of 7.5 reflects a high confidentiality impact, while integrity and availability are unaffected.

Affected Systems

The vulnerability affects Oracle’s Siebel CRM Integration from versions 17.0 through 26.6. Only this product and the specified version range are known to be vulnerable.

Risk and Exploitability

The attack vector is network‑based over HTTP, requiring no authentication or elevated privileges. Because the flaw is easily exploitable and exposes sensitive data, the risk is significant for environments that expose the REST API to external networks. The EPSS score indicates a very low exploitation probability of less than 1% and the issue has not been listed in the CISA KEV catalog, but the high CVSS base score and lack of authentication requirements suggest that attackers could target this weakness with little effort.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Oracle Corporation

Siebel CRM Integration

affected

Version	Status	Constraints
`17.0`	affected	≤ 26.6

Configuration 1 [-]

cpe:2.3:a:oracle:siebel_crm:*:*:*:*:*:*:*:*

No data.

Vendor Product Versions

Oracle

Siebel Crm Integration

Version	Status	Scheme	Platform
`[17.0,26.6]`	affected	generic	—

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Apply the Oracle patch or upgrade Siebel CRM Integration to a version later than 26.6.
Restrict network access to the Siebel CRM Integration REST API using firewall rules, VPN, or IP whitelisting.
Disable or isolate the REST service if it is not required for business functions.

Generated by OpenCVE AI on August 21, 2026 at 03:32 UTC.

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.414% probability within 30 days)

Exploitation none

Automatable yes

Technical Impact partial

References

Link	Providers
https://www.oracle.com/security-alerts/cspuaug2026.html

History

Sep 11, 2026 11:45 PM First appearance in the feed. Affected versions updated. Affected vendors updated View changes

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

Aug 22, 2026 3:30 AM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Aug 21, 2026 4:00 AM Title updated. Weaknesses updated View changes

Type	Values Removed	Values Added
Title		Unauthenticated REST API allows sensitive data exposure in Siebel CRM Integration
Weaknesses		CWE-284

Aug 20, 2026 10:00 AM Title updated. Weaknesses updated View changes

Type	Values Removed	Values Added
Title	Unauthenticated Remote Access in Siebel CRM Integration via REST API
Weaknesses	CWE-200 CWE-285

Aug 19, 2026 4:30 AM Title updated. Weaknesses updated View changes

Type	Values Removed	Values Added
Title		Unauthenticated Remote Access in Siebel CRM Integration via REST API
Weaknesses		CWE-200 CWE-285

Aug 18, 2026 9:15 PM Description updated. First appearance in the feed. Affected versions updated. Affected vendors updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		Vulnerability in the Siebel CRM Integration product of Oracle Siebel CRM (component: REST). Supported versions that are affected are 17.0-26.6. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel CRM Integration. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Siebel CRM Integration accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).
First Time appeared		Oracle Oracle siebel Crm Integration
CPEs		cpe:2.3:a:oracle:siebel_crm_integration::::::::
Vendors & Products		Oracle Oracle siebel Crm Integration
References		https://www.oracle.com/security-alerts/cspuaug2026.html
Metrics		cvssV3_1 `{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}`