Dashboard / CVE-2026-91388

CVE-2026-91388

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 49/100
Published: 2026-10-20 Modified: 2026-11-04 First seen: 2026-11-04 Status: active

Attack Surface

Network No Auth Scope Change

CVSS Vector Breakdown

AV: Network
AC: High
PR: None
UI: Required
S: Changed
C: Low
I: Low
A: None

Description

Vulnerability in the Siebel CRM End User product of Oracle Siebel CRM (component: Open UI). Supported versions that are affected are 17.0-26.9. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel CRM End User. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Siebel CRM End User, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Siebel CRM End User accessible data as well as unauthorized read access to a subset of Siebel CRM End User accessible data. CVSS 3.1 Base Score 4.7 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N).

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
oracle siebel_crm 17.0 – 26.9

References & Advisories (1)

Bug Bounty Relevance

49 / 100
✓ Network accessible
✓ No authentication

CVSS Score

4.7 / 10.0 v3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS — Exploitation Probability

0.15%
Raw Score 0.001550
Percentile 4.7%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00155
2026-11-13
0.00155
2026-11-12
0.00155
2026-11-10
0.00155
2026-11-09
0.00155
2026-11-08
0.00155
2026-11-07
0.00155
2026-11-06
0.00155
2026-11-05
0.00155
2026-11-04
0.00149

Intelligence Sources

nvd ref →

External Links