CVE-2026-83203CWE-284broken-access-control

CVE-2026-83203

High · published September 16, 2026

CVSS v3.1
8.6
EPSS
0%
Percentile
28.4
In the wild
Unconfirmed
What it is

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 HTTP to compromise Siebel CRM End User. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Siebel CRM End User accessible data as well as unauthorized update, insert or delete access to some of Siebel CRM End User accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Siebel CRM End User. CVSS 3.1 Base Score 8.6 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L).

The record
Technical detail
CVSS v3.1
8.6 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00358 · 28.4th percentile
Weakness
CWE-284 · Improper Access Control
Published
2026-09-16T00:18Z
References (1)
EPSS history
Timeline
  • 17 SEP 03:33Z
    EPSS moved — → 0%
    epss
  • 15 SEP 20:04Z
    Vulnerability in the Siebel CRM End User product of Oracle Siebel CRM (component: Open UI)
    cvelistv5