Vulnerability in the Oracle Net Services component of Oracle Database Server. Supported versions that are affected are 23.4.0-23.26.3. Easily exploitable vulnerability allows unauthenticated attacker with network access via TCPS to compromise Oracle Net Services. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Net Services. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H).
History

Sun, 20 Sep 2026 08:15:00 +0000

Type Values Removed Values Added
Title Denial of Service via Unauthenticated TCPS Access in Oracle Net Services

Fri, 18 Sep 2026 21:30:00 +0000

Type Values Removed Values Added
Title Oracle Net Services Denial of Service via TCPS
Weaknesses CWE-770 CWE-400
Metrics ssvc

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


Thu, 17 Sep 2026 00:30:00 +0000

Type Values Removed Values Added
Title Oracle Net Services Denial of Service via TCPS
Weaknesses CWE-770

Tue, 15 Sep 2026 20:15:00 +0000

Type Values Removed Values Added
Description Vulnerability in the Oracle Net Services component of Oracle Database Server. Supported versions that are affected are 23.4.0-23.26.3. Easily exploitable vulnerability allows unauthenticated attacker with network access via TCPS to compromise Oracle Net Services. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Net Services. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H).
First Time appeared Oracle
Oracle database - E Net Services
CPEs cpe:2.3:a:oracle:database_-_e_net_services:*:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle database - E Net Services
References
Metrics cvssV3_1

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


cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published: 2026-09-15T20:05:23.058Z

Updated: 2026-09-18T16:14:57.443Z

Reserved: 2026-08-31T15:40:57.354Z

Link: CVE-2026-83347

cve-icon Vulnrichment

Updated: 2026-09-18T16:11:52.377Z

cve-icon NVD

Status : Deferred

Published: 2026-09-15T20:18:48.133

Modified: 2026-09-18T17:17:03.790

Link: CVE-2026-83347

cve-icon Redhat

No data.