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CVE-2026-91646

5.6 medium SSVC exploitation: none Modified
NVD · CVE.org

Vulnerability in Oracle Essbase (component: Security). The supported version that is affected is 21.8.3.0.0. Difficult to exploit vulnerability allows unauthenticated attacker with network access via T3, IIOP to compromise Oracle Essbase. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Essbase accessible data as well as unauthorized read access to a subset of Oracle Essbase accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Essbase. CVSS 3.1 Base Score 5.6 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L).

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 7

  1. CwesCWE-284NVD modified 2026-10-27 13:17
  2. StatusAnalyzed → ModifiedNVD modified 2026-10-27 13:17
  3. Cpes+1 CPE criteria (now 1)NVD modified 2026-10-23 14:58
  4. StatusAwaiting Analysis → AnalyzedNVD modified 2026-10-23 14:58
  5. StatusPublished → Awaiting AnalysisNVD modified 2026-10-21 18:44
  6. StatusReceived → PublishedNVD modified 2026-10-20 21:26
  7. First seenCVSS 5.6NVD modified 2026-10-20 22:21

Affected (CPE criteria) 1

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

References 1