by Kastro
Paper/Archive/CVE-2026-91644

CVE-2026-91644

Oracle Corporation Oracle Essbase — Vulnerability in Oracle Essbase (component: Security).

EPSS 0.2%CVSS 9.3
critical.is priorityof 100
30
CVSS 9.3 (CNA)9.3 / 10 × 3027.9Not in CISA KEV+300.0EPSS percentile 12.7.127 × 202.5No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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 HTTP 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. CVSS 3.1 Base Score 9.3 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N).

Affected

ProductAffectedFixed inSource
Oracle Essbase21.8.3.0.0–CNA

Scores by source

oracle (CNA)9.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: partial

References

advisoryoracle.com/security-alerts/cpuoct2026.html