Vulnerability in the RDBMS component of Oracle Database Server. Supported versions that are affected are 23.4.0-23.26.3. Easily exploitable vulnerability allows unauthenticated attacker with access to the physical communication segment attached to the hardware where the RDBMS executes to compromise RDBMS. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of RDBMS. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
History

Sat, 24 Oct 2026 04:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 21 Oct 2026 17:15:00 +0000

Type Values Removed Values Added
First Time appeared Oracle database Server
Oracle Corporation
Oracle Corporation oracle Database Server
Vendors & Products Oracle database Server
Oracle Corporation
Oracle Corporation oracle Database Server

Wed, 21 Oct 2026 13:15:00 +0000

Type Values Removed Values Added
Title Unauthenticated Physical Layer Exploit Allowing Denial of Service on Oracle Database Server
Weaknesses CWE-400
CWE-730

Tue, 20 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Description Vulnerability in the RDBMS component of Oracle Database Server. Supported versions that are affected are 23.4.0-23.26.3. Easily exploitable vulnerability allows unauthenticated attacker with access to the physical communication segment attached to the hardware where the RDBMS executes to compromise RDBMS. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of RDBMS. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
First Time appeared Oracle
Oracle database - Rdbms
CPEs cpe:2.3:a:oracle:database_-_rdbms:*:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle database - Rdbms
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published: 2026-10-20T21:26:10.802Z

Updated: 2026-10-24T03:19:30.401Z

Reserved: 2026-09-14T22:10:16.637Z

Link: CVE-2026-91479

cve-icon Vulnrichment

Updated: 2026-10-24T03:19:26.040Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-20T22:20:51.460

Modified: 2026-10-24T04:18:23.867

Link: CVE-2026-91479

cve-icon Redhat

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