Oracle Siebel CRM 17.0-26.6 Migration: Unauth HTTP Exploit
CVE-2026-70856 Published on August 18, 2026

Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Migration). Supported versions that are affected are 17.0-26.6. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel CRM Deployment. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in takeover of Siebel CRM Deployment. CVSS 3.1 Base Score 7.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H).

Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-70856 is exploitable with network access, requires user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
NETWORK
Attack Complexity:
HIGH
Privileges Required:
NONE
User Interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

What is an Authorization Vulnerability?

The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

CVE-2026-70856 has been classified to as an Authorization vulnerability or weakness.


Products Associated with CVE-2026-70856

stack.watch emails you whenever new vulnerabilities are published in Oracle Siebel Crm Deployment or Oracle. Just hit a watch button to start following.

 
 

Affected Versions

Oracle Corporation Siebel CRM Deployment: