CVE-2026-83154 Missing authorization in Siebel CRM End User
Unauthenticated attackers can read, create, delete, or modify critical Siebel CRM data via SOAP requests.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-83154?
CVE-2026-83154 is a critical missing authorization vulnerability in Oracle Siebel Crm, published on 15 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Vulnerability in the Siebel CRM End User product of Oracle Siebel CRM (component: Open UI). Supported versions that are affected are 17.0-26.7. Easily exploitable vulnerability allows unauthenticated attacker with network access via SOAP to compromise Siebel CRM End User. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Siebel CRM End User accessible data as well as unauthorized access to critical data or complete access to all Siebel CRM End User accessible data. CVSS 3.1 Base Score 9.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).
Which versions are affected by CVE-2026-83154?
It affects 1 product.
Products include Oracle Siebel Crm.
How do I fix CVE-2026-83154?
No fix has been published for CVE-2026-83154 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-83154 being exploited?
There is no known exploitation of CVE-2026-83154 in the wild and no public exploit code.
Other vulnerabilities in Oracle Siebel Crm
Sources
Also known as GHSA-mmxx-5x9f-vqch.