CVE-2026-46833: Oracle Database Server

Critical severity, CVSS 9.0. EPSS: 0.4% chance of exploitation in the next 30 days.

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).

Affected products

• Oracle Database Server: from 23.4.0, up to and including 23.26.2

Published 2026-05-28. Last modified 2026-07-21.