CVE-2026-46888: High severity Oracle Siebel CRM Deployment vulnerability

Q: Who is realistically exposed to this vulnerability?

Siebel CRM Deployment environments running affected supported versions 17.0 through 26.5 are exposed if an attacker can log on to the infrastructure where Siebel CRM Deployment executes. The affected component is Database Upgrade.

Q: What access does an attacker need to exploit it?

An attacker needs low-privileged access and a logon to the infrastructure hosting Siebel CRM Deployment. No user interaction is required, and the vulnerability is locally exploitable.

Q: What could happen if exploitation succeeds?

Successful exploitation can result in takeover of Siebel CRM Deployment. Confidentiality, integrity, and availability can all be affected.

Published Jun 16, 2026

Updated

Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Database Upgrade). Supported versions that are affected are 17.0-26.5. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Siebel CRM Deployment executes to compromise Siebel CRM Deployment. Successful attacks of this vulnerability can result in takeover of Siebel CRM Deployment. CVSS 3.1 Base Score 7.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Affected Software

2 affected components

Oracle Siebel CRM Deployment>=17.0<=26.5

Oracle Siebel CRM>=17.0<=26.5

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade Oracle Siebel CRM (Database Upgrade component) to a version that resolves this vulnerability.
Fixed in 26.5
Compensating control
Restrict access to the host/user accounts where the Oracle Siebel CRM Deployment (Database Upgrade component) is executed so only authorized users can log on (e.g., enforce least privilege and limit interactive access via network/host ACLs).

Event History

Jun 16, 2026

CVE Published

via MITRE·07:27 PM

Data Sourced

via MITRE·07:27 PM

DescriptionSeverity

Jun 17, 2026

Data Sourced

via NVD·10:54 AM

DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

Who is realistically exposed to this vulnerability?

Siebel CRM Deployment environments running affected supported versions 17.0 through 26.5 are exposed if an attacker can log on to the infrastructure where Siebel CRM Deployment executes. The affected component is Database Upgrade.

What access does an attacker need to exploit it?

An attacker needs low-privileged access and a logon to the infrastructure hosting Siebel CRM Deployment. No user interaction is required, and the vulnerability is locally exploitable.

What could happen if exploitation succeeds?

Successful exploitation can result in takeover of Siebel CRM Deployment. Confidentiality, integrity, and availability can all be affected.

CVE-2026-46888: High severity Oracle Siebel CRM Deployment vulnerability

Affected Software

Remediation

Event History

Frequently Asked Questions

Who is realistically exposed to this vulnerability?

What access does an attacker need to exploit it?

What could happen if exploitation succeeds?

Company

Resources

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Frequently Asked Questions

Who is realistically exposed to this vulnerability?

What access does an attacker need to exploit it?

What could happen if exploitation succeeds?