CRITICAL 9.8 NVD

CVE-2026-91665

Vulnerability in Oracle Essbase (component: Security). The supported version that is affected is 21.8.3.0.0. Easily exploitable vulnerability allows unauthent

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 takeover of Oracle Essbase. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

References

https://www.oracle.com/security-alerts/cpuoct2026.html

Published: 2026-10-20 · Source: NVD · Feed updated: 2026-10-20

This critical severity vulnerability with a CVSS score of 9.8 was published on 2026-10-20 via NVD.

Risk Timeline

CVE Disclosed2026-10-20 · -1 days ago

Remediation Resources

Official Advisory

www.oracle.com/security-alerts/cpuoct2026.html

vulnfeed aggregates 18176 vulnerabilities from NVD, CISA KEV, Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.