CVE-2026-91664

HIGH CVSS 3.1: 7.5 EPSS 0.27%
Updated Oct 23, 2026
Oracle
Parameter Value
CVSS 7.5 (HIGH)
Type CWE-400 (Uncontrolled Resource Consumption)
Vendor Oracle
Public PoC No

Vulnerability in Oracle Essbase (component: Security). The supported version that is affected is 21.8.3.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via TCP to compromise Oracle Essbase.

Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Essbase. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Oracle Essbase
cpe:2.3:a:oracle:essbase:21.8.3.0.0:*:*:*:*:*:*:*
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