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CVE-2026-91663

9.9 critical SSVC exploitation: none Analyzed
NVD · CVE.org

Vulnerability in Oracle Essbase (component: Security). The supported version that is affected is 21.8.3.0.0. Easily exploitable vulnerability allows low privileged attacker with network access via T3, IIOP 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 takeover of Oracle Essbase. CVSS 3.1 Base Score 9.9 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H).

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 10

  1. Cpes+1 CPE criteria (now 1)NVD modified 2026-10-23 17:18
  2. StatusPublished → AnalyzedNVD modified 2026-10-23 17:18
  3. StatusUndergoing Analysis → PublishedNVD modified 2026-10-23 11:06
  4. CwesCWE-284NVD modified 2026-10-23 12:18
  5. StatusPublished → Undergoing AnalysisNVD modified 2026-10-23 12:18
  6. StatusUndergoing Analysis → PublishedNVD modified 2026-10-23 03:55
  7. StatusAwaiting Analysis → Undergoing AnalysisNVD modified 2026-10-23 04:18
  8. StatusPublished → Awaiting AnalysisNVD modified 2026-10-21 18:44
  9. StatusReceived → PublishedNVD modified 2026-10-20 21:26
  10. First seenCVSS 9.9NVD modified 2026-10-20 22:21

Affected (CPE criteria) 1

  • cpe:2.3:a:oracle:essbase:21.8.3.0.0:*:*:*:*:*:*:*

References 1