CVE-2020-11998

CRITICAL

Apache ActiveMQ JMX RMIConnectorServer - Remote Code Execution

Title source: manual
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2020-11998. PoCs published by shoucheng3.

AI-analyzed exploit summary This repository contains a proof-of-concept exploit for CVE-2020-11998, a deserialization vulnerability in Apache ActiveMQ. The exploit targets the AMQP protocol implementation, specifically the frame parsing logic, to achieve remote code execution.

Description

A regression has been introduced in the commit preventing JMX re-bind. By passing an empty environment map to RMIConnectorServer, instead of the map that contains the authentication credentials, it leaves ActiveMQ open to the following attack: https://docs.oracle.com/javase/8/docs/technotes/guides/management/agent.html "A remote client could create a javax.management.loading.MLet MBean and use it to create new MBeans from arbitrary URLs, at least if there is no security manager. In other words, a rogue remote client could make your Java application execute arbitrary code." Mitigation: Upgrade to Apache ActiveMQ 5.15.13

Exploits (1)

nomisec WORKING POC
by shoucheng3 · poc
https://github.com/shoucheng3/apache__activemq_CVE-2020-11998_5-15-12

This repository contains a proof-of-concept exploit for CVE-2020-11998, a deserialization vulnerability in Apache ActiveMQ. The exploit targets the AMQP protocol implementation, specifically the frame parsing logic, to achieve remote code execution.

Classification
Working Poc 90%
Attack Type
Deserialization
Complexity
Moderate
Reliability
Reliable
Target: Apache ActiveMQ versions affected by CVE-2020-11998
No auth needed
Prerequisites: Network access to the target ActiveMQ instance · AMQP protocol enabled on the target
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Scores

CVSS v3 9.8
EPSS 0.5122
EPSS Percentile 98.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

Status published
Products (9)
apache/activemq 5.15.12
oracle/communications_diameter_signaling_router 8.0.0 - 8.5.0
oracle/communications_element_manager 8.2.0 - 8.2.4.0
oracle/communications_session_report_manager 8.0.0 - 8.2.2
oracle/communications_session_route_manager 8.0.0 - 8.2.2
oracle/enterprise_repository 11.1.1.7.0
oracle/flexcube_private_banking 12.0.0
oracle/flexcube_private_banking 12.1.0
org.apache.activemq/activemq-parent 5.15.12 - 5.15.13Maven
Published Sep 10, 2020
Tracked Since Feb 18, 2026