CVE-2023-46604
Apache ActiveMQ Deserialization of Untrusted Data Vulnerability
Published Oct 27, 2023 · updated Jun 16, 2026 · apache activemq
The Java OpenWire protocol marshaller is vulnerable to Remote Code Execution. This vulnerability may allow a remote attacker with network access to either a Java-based OpenWire broker or client to run arbitrary shell commands by manipulating serialized class types in the OpenWire protocol to cause either the client or the broker (respectively) to instantiate any class on the classpath. Users are recommended to upgrade both brokers and clients to version 5.15.16, 5.16.7, 5.17.6, or 5.18.3 which fixes this issue.
Timeline
Detection, updates, and resolution for this record.
Oct 27, 2023 · Catalog
Detected
The Java OpenWire protocol marshaller is vulnerable to Remote Code Execution. This vulnerability may allow a remote attacker with network access to either a Java-based OpenWire broker or client to run arbitrary shell commands by manipulating serialized class types in the OpenWire protocol to cause either the client or the broker (respectively) to instantiate any class on the classpath. Users are r
Nov 2, 2023 · CISA KEV
Known exploited
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Nov 23, 2023 · CISA KEV
Remediation due
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Jun 16, 2026 · Catalog
Updated
The Java OpenWire protocol marshaller is vulnerable to Remote Code Execution. This vulnerability may allow a remote attacker with network access to either a Java-based OpenWire broker or client to run arbitrary shell commands by manipulating serialized class types in the OpenWire protocol to cause either the client or the broker (respectively) to instantiate any class on the classpath. Users are r
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA due date Nov 23, 2023
Affected
- cpe apache/activemqversion unspecified
- cpe apache/activemq legacy openwire moduleversion unspecified
- cpe debian/debian linux10.0
- cpe netapp/e-series santricity unified managerversion unspecified
- vendor Apache ActiveMQversion unspecified
Sources
- CISA KEVCVE-2023-46604
Apache ActiveMQ contains a deserialization of untrusted data vulnerability that may allow a remote attacker with network access to a broker to run shell commands by manipulating serialized class types in the OpenWire protocol to cause the broker to instantiate any class on the classpath.
cisa.gov - CVE.orgCVE-2023-46604
Official CVE identifier
cve.org - FIRST EPSSCVE-2023-46604
30-day exploitation probability 99.9%
first.org - Metasploit Modulesexploit_multi/misc/apache_activemq_rce_cve_2023_46604
Public module reference (excellent). Module source is not copied into this catalog.
rapid7.com - NIST NVDCVE-2023-46604
The Java OpenWire protocol marshaller is vulnerable to Remote Code Execution. This vulnerability may allow a remote attacker with network access to either a Java-based OpenWire broker or client to run arbitrary shell commands by manipulating serialized class types in the OpenW
nvd.nist.gov