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9.1

Oracle Siebel CRM Deployment can be taken over remotely

CVE-2026-83201 · published 25 days ago
Summary

Versions 17.0 through 26.7 of the Siebel CRM Deployment server can be accessed by anyone on the network without a password. An attacker could create, delete, or change important data, or view all information stored in the system. Apply the vendor's security update or restrict network access to the server as soon as possible.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
oracle corporation siebel crm deployment <= 26.7
Original advisory text
Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure). Supported versions that are affected are 17.0-26.7. Easily exploitable vulnerability all...
Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure). Supported versions that are affected are 17.0-26.7. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel CRM Deployment. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Siebel CRM Deployment accessible data as well as unauthorized access to critical data or complete access to all Siebel CRM Deployment 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).
References
Fix within
Internet-facing 3 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically
  • Gives an attacker full control
Severity
9.1 Critical
Exploitation
<1% chance of attack within 30 days
Type
CWE-287Improper Authentication
CWE-306Missing Authentication for Critical Function
Timeline
Published15 Sep 2026
Updated11 Oct 2026
First seen15 Sep 2026
Sources
CVE-2026-83201 · NVD
CVE-2026-83201 · MITRE
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