CVE-2023-46604
Apache ActiveMQ, Apache ActiveMQ Legacy OpenWire Module: Unbounded deserialization causes ActiveMQ to be vulnerable to a remote code execution (RCE) attack
CVSS Score
10.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-502 |
| Vendor | apache software foundation |
| Product | apache activemq |
| Published | Oct 27, 2023 |
| Last Updated | Nov 3, 2025 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
High
Availability
High
Affected Versions
Apache Software Foundation / Apache ActiveMQ
5.18.0 < 5.18.3 5.17.0 < 5.17.6 5.16.0 < 5.16.7 0 < 5.15.16
Apache Software Foundation / Apache ActiveMQ Legacy OpenWire Module
5.18.0 < 5.18.3 5.17.0 < 5.17.6 5.16.0 < 5.16.7 5.8.0 < 5.15.16
References
activemq.apache.org: https://activemq.apache.org/security-advisories.data/CVE-2023-46604-announcement.txt openwall.com: https://www.openwall.com/lists/oss-security/2023/10/27/5 security.netapp.com: https://security.netapp.com/advisory/ntap-20231110-0010/ packetstormsecurity.com: https://packetstormsecurity.com/files/175676/Apache-ActiveMQ-Unauthenticated-Remote-Code-Execution.html lists.debian.org: https://lists.debian.org/debian-lts-announce/2023/11/msg00013.html seclists.org: http://seclists.org/fulldisclosure/2024/Apr/18 lists.debian.org: https://lists.debian.org/debian-lts-announce/2024/10/msg00027.html cisa.gov: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-46604