CVE-2026-46833

Oracle Net Service TLS Exploit Enables Unauthenticated Takeover

Published May 28, 2026 CVSS 3.1 · 9 Critical EPSS < 1% KEV · Not listed
Description
Vulnerability in the Net Service component of Oracle Database Server. Supported versions that are affected are 23.4.0-23.26.2. Difficult to exploit vulnerability allows unauthenticated attacker with network access via TLS to compromise Net Service. While the vulnerability is in Net Service, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Net Service. CVSS 3.1 Base Score 9.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H).

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Title Oracle Net Service TLS Exploit Enables Unauthenticated Takeover
Weaknesses CWE-284
CWE-285
Type Values Removed Values Added
Title Unauthenticated Network Service Takeover via TLS in Oracle Database Server
Weaknesses CWE-287
Type Values Removed Values Added
Weaknesses NVD-CWE-noinfo
CPEs cpe:2.3:a:oracle:database_server:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Oracle database Server
Vendors & Products Oracle database Server
Type Values Removed Values Added
Title Unauthenticated Network Service Takeover via TLS in Oracle Database Server
Weaknesses CWE-287
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Vulnerability in the Net Service component of Oracle Database Server. Supported versions that are affected are 23.4.0-23.26.2. Difficult to exploit vulnerability allows unauthenticated attacker with network access via TLS to compromise Net Service. While the vulnerability is in Net Service, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Net Service. CVSS 3.1 Base Score 9.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H).
First Time appeared Oracle
Oracle database - Net Service
CPEs cpe:2.3:a:oracle:database_-_net_service:*:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle database - Net Service
References
Metrics cvssV3_1

{'score': 9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H'}

Sources

Status
PUBLISHED
Assigner
oracle
Published
Updated
May 29, 2026, 3:56 AM
Reserved
May 18, 2026, 3:55 PM
Status
Analyzed
Published
May 28, 2026, 9:16 PM
Modified
Jul 21, 2026, 10:10 AM