CVE-2018-2561: Oracle HTTP Server

Medium severity, CVSS 5.3. EPSS: 2% chance of exploitation in the next 30 days.

Vulnerability in the Oracle HTTP Server component of Oracle Fusion Middleware (subcomponent: Web Listener). Supported versions that are affected are 11.1.1.7.0, 11.1.1.9.0, 12.1.3.0.0, 12.2.1.2.0 and 12.2.1.3.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle HTTP Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle HTTP Server. CVSS 3.0 Base Score 5.3 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

Affected products

• Oracle HTTP Server: version 11.1.1.7.0 only; version 11.1.1.9.0 only; version 12.1.3.0.0 only; version 12.2.1.2.0 only; version 12.2.1.3.0 only

Published 2018-01-18. Last modified 2026-06-17.