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CVE-2026-91664

7.5 high 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 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).

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 8

  1. Cpes+1 CPE criteria (now 1)NVD modified 2026-10-23 17:15
  2. StatusPublished → AnalyzedNVD modified 2026-10-23 17:15
  3. StatusUndergoing Analysis → PublishedNVD modified 2026-10-22 18:50
  4. CwesCWE-400NVD modified 2026-10-22 19:18
  5. StatusAwaiting Analysis → Undergoing AnalysisNVD modified 2026-10-22 19:18
  6. StatusPublished → Awaiting AnalysisNVD modified 2026-10-21 18:44
  7. StatusReceived → PublishedNVD modified 2026-10-20 21:26
  8. First seenCVSS 7.5NVD modified 2026-10-20 22:21

Affected (CPE criteria) 1

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

References 1