CVE-2026-83220: High severity Oracle Siebel CRM Integration vulnerability

Q: Which deployments are exposed to this issue?

Affected deployments are Oracle Siebel CRM Integration versions 23.6 through 26.7 using the Event Publish and Subscribe component. Exploitation requires access to the physical communication segment connected to the hardware where the product runs.

Q: Does an attacker need an account or user interaction to exploit it?

No. The vulnerability is described as easily exploitable by an unauthenticated attacker, and no user interaction is required.

Q: What could a successful attacker do?

An attacker could obtain unauthorized access to critical data or all data accessible to Siebel CRM Integration. They could also create, delete, or modify critical data or all accessible data.

Q: What should be prioritized if patching cannot happen immediately?

Restrict access to the physical communication segment attached to the hardware running Siebel CRM Integration. This is the access condition identified for unauthenticated exploitation.

Published Sep 15, 2026

Updated

Vulnerability in the Siebel CRM Integration product of Oracle Siebel CRM (component: Event Publish and Subscribe). Supported versions that are affected are 23.6-26.7. Easily exploitable vulnerability allows unauthenticated attacker with access to the physical communication segment attached to the hardware where the Siebel CRM Integration executes to compromise Siebel CRM Integration. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Siebel CRM Integration accessible data as well as unauthorized access to critical data or complete access to all Siebel CRM Integration accessible data. CVSS 3.1 Base Score 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).

Affected Software

1 affected component

Oracle Siebel CRM Integration>=23.6<=26.7

Event History

Sep 15, 2026

CVE Published

via MITRE·08:04 PM

Data Sourced

via MITRE·08:04 PM

DescriptionSeverity

Data Sourced

via NVD·08:18 PM

DescriptionSeverity

Frequently Asked Questions

Which deployments are exposed to this issue?

Affected deployments are Oracle Siebel CRM Integration versions 23.6 through 26.7 using the Event Publish and Subscribe component. Exploitation requires access to the physical communication segment connected to the hardware where the product runs.

Does an attacker need an account or user interaction to exploit it?

No. The vulnerability is described as easily exploitable by an unauthenticated attacker, and no user interaction is required.

What could a successful attacker do?

An attacker could obtain unauthorized access to critical data or all data accessible to Siebel CRM Integration. They could also create, delete, or modify critical data or all accessible data.

What should be prioritized if patching cannot happen immediately?

Restrict access to the physical communication segment attached to the hardware running Siebel CRM Integration. This is the access condition identified for unauthenticated exploitation.

CVE-2026-83220: High severity Oracle Siebel CRM Integration vulnerability

Affected Software

Event History

Frequently Asked Questions

Which deployments are exposed to this issue?

Does an attacker need an account or user interaction to exploit it?

What could a successful attacker do?

What should be prioritized if patching cannot happen immediately?

Company

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Frequently Asked Questions

Which deployments are exposed to this issue?

Does an attacker need an account or user interaction to exploit it?

What could a successful attacker do?

What should be prioritized if patching cannot happen immediately?