CVE-2026-83229 Auth bypass in Siebel CRM Deployment

Critical 9.1 Published Updated

High-privileged attackers can compromise Siebel CRM Deployment via HTTP, leading to full system takeover and significant impact on additional products.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-83229?

CVE-2026-83229 is a critical authentication bypass vulnerability in Oracle Corporation Siebel CRM Deployment, published on 15 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Siebel Management Console). Supported versions that are affected are 17.0-26.7. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise Siebel CRM Deployment. While the vulnerability is in Siebel CRM Deployment, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Siebel CRM Deployment. CVSS 3.1 Base Score 9.1 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H).

Weakness: CWE-284

Which versions are affected by CVE-2026-83229?

How do I fix CVE-2026-83229?

No fix has been published for CVE-2026-83229 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-83229 being exploited?

There is no known exploitation of CVE-2026-83229 in the wild and no public exploit code.

Sources

Also known as GHSA-c8h5-fxpc-7xg5.

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