Rapid7

vulnerability

Oracle Linux: CVE-2021-2464: ELSA-2021-9444: oswatcher security update (IMPORTANT)

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
Sep 24, 2021
Added
Sep 24, 2021
Modified
Dec 3, 2025

Description

Vulnerability in Oracle Linux (component: OSwatcher). Supported versions that are affected are 7 and 8. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Linux executes to compromise Oracle Linux. Successful attacks of this vulnerability can result in takeover of Oracle Linux. CVSS 3.1 Base Score 7.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Solution

oracle-linux-upgrade-oswatcher
Title
Rapid7 Labs

2026 Global Threat Landscape Report

The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.