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7.5

Oracle Siebel CRM Deployment allows remote attackers to view data

CVE-2026-91447 · published 15 days ago
Summary

Versions 17.0 through 26.9 of Oracle Siebel CRM Deployment's server component can be accessed over the web without any login. An attacker on the same network can read critical information stored in the system. Apply the vendor's security update and restrict network access to the application to mitigate the risk.

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 <= 26.9
oracle siebel_crm >= 17.0, <= 26.9
cpe:2.3:a:oracle:siebel_crm:*:*:*:*:*:*:*:*
Original advisory text
Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure). Supported versions that are affected are 17.0-26.9. Easily exploitable vulnerability all...
Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure). Supported versions that are affected are 17.0-26.9. 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 access to critical data or complete access to all Siebel CRM Deployment accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).
References
Fix within
Internet-facing 14 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically
  • Gives an attacker partial control
Severity
7.5 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-284Improper Access Control
Timeline
Published20 Oct 2026
Updated4 Nov 2026
First seen20 Oct 2026
Sources
CVE-2026-91447 · NVD
CVE-2026-91447 · MITRE
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