CVE-2026-91637

Vulnerability in Oracle Essbase (component: Security) affecting version 21.8.3.0.0. An easily exploitable vulnerability allows an unauthenticated attacker with network access via TCP to compromise Oracle Essbase. CVSS 3.1 Base Score 9.8.

Vulnerability in Oracle Essbase (component: Security) affecting version 21.8.3.0.0. An easily exploitable vulnerability allows a low-privileged attacker with network access via T3, IIOP to compromise Oracle Essbase, with potential impact on additional products (scope change). CVSS 3.1 Base Score 9.9.

Vulnerability in Oracle Essbase (component: Security) affecting version 21.8.3.0.0. An easily exploitable vulnerability allows a low-privileged attacker with network access via HTTP to compromise Oracle Essbase, with potential impact on additional products (scope change). CVSS 3.1 Base Score 9.9.

Vulnerability in Oracle Essbase (component: Federated Partitions) affecting version 21.8.3.0.0. An easily exploitable vulnerability allows a low-privileged attacker with network access via HTTP to gain unauthorized access to critical data, update, insert or delete it, and cause a partial denial of service, with potential impact on additional products (scope change). CVSS 3.1 Base Score 9.1.

Vulnerability in Oracle Essbase (Security component) affecting version 21.8.3.0.0. A low-privileged attacker with network access via HTTP can exploit it to gain unauthorized access to critical data, modify data, and cause partial denial of service. CVSS 9.1.

Vulnerability in Oracle Essbase (Security component) affecting version 21.8.3.0.0. An unauthenticated attacker with network access via HTTP can gain unauthorized access to critical data and modify data. CVSS 9.3.

Vulnerability in Oracle Essbase (Security component) affecting version 21.8.3.0.0. A low-privileged attacker with network access via HTTP can take over Oracle Essbase. CVSS 9.9.

Vulnerability in Oracle Essbase (component: Infrastructure) version 21.8.1.0.0. Easily exploitable by an unauthenticated attacker over HTTP, allowing takeover of the system. CVSS score 9.8.

A vulnerability in Oracle Essbase (Security component) affecting version 21.8.3.0.0. An easily exploitable flaw allows an unauthenticated attacker with network access via TCP to cause a hang or frequently repeatable crash (full DoS).

Vulnerability in Oracle Essbase (component: Java Based Agent). The supported version that is affected is 21.8.3.0.0. Difficult to exploit vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Essbase executes to compromise Oracle Essbase. While the vulnerability is in Oracle Essbase, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Essbase accessible data as well as unauthorized update, insert or delete access to some of Oracle Essbase accessible data.