CVE-2026-91539

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Oracle Business Intelligence Enterprise Edition Privilege Escalation

Publication date: 2026-10-20

Last updated on: 2026-10-26

Assigner: Oracle

Description

Vulnerability in the Oracle Business Intelligence Enterprise Edition product of Oracle Analytics (component: Presentation Services). The supported version that is affected is 12.2.1.4.0. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Business Intelligence Enterprise Edition executes to compromise Oracle Business Intelligence Enterprise Edition. Successful attacks of this vulnerability can result in takeover of Oracle Business Intelligence Enterprise Edition. CVSS 3.1 Base Score 7.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

CVSS Scores

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Meta Information

Published

2026-10-20

Last Modified

2026-10-26

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-91539

EUVD

EUVD-2026-106770

Affected Vendors & Products

Vendor	Product	Version / Range
Oracle Corporation	Oracle Business Intelligence Enterprise Edition	12.2.1.4.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-269	The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle Business Intelligence Enterprise Edition version 12.2.1.4.0. It allows a low-privileged attacker with local system access to take over the entire Oracle Business Intelligence Enterprise Edition system. The vulnerability has a CVSS score of 7.8, indicating high impact on confidentiality, integrity, and availability.

Detection Guidance

Detection requires checking for Oracle Business Intelligence Enterprise Edition version 12.2.1.4.0 and verifying if unauthorized access or privilege escalation attempts exist in logs. Review Oracle's security advisories for patches or mitigations.

Impact Analysis

If exploited, an attacker could gain full control over your Oracle Business Intelligence Enterprise Edition system. This could lead to unauthorized access to sensitive data, modification or deletion of critical information, and disruption of services.

Compliance Impact

This vulnerability allows low-privileged attackers to compromise Oracle Business Intelligence Enterprise Edition, potentially leading to unauthorized access, data breaches, or system takeover. Such breaches could expose sensitive data, violating GDPR (data protection) and HIPAA (healthcare data privacy) requirements, resulting in legal penalties and reputational damage.

Mitigation Strategies

Apply the latest security patches from Oracle for Oracle Business Intelligence Enterprise Edition version 12.2.1.4.0. Restrict user privileges to minimize access. Monitor logs for suspicious activity related to Presentation Services.

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