CVE-2023-46604

Apache ActiveMQ Deserialization of Untrusted Data Vulnerability

Severity: critical
CVSS v3: 10
EPSS percentile: 100%
Known exploited: yes (CISA KEV)
Vendor: Apache
Product: ActiveMQ
Published: 2023-11-02
Modified: 2026-06-17

Description

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.

NVD record

Informational only. Not a warranty of security, completeness or fitness for any purpose. Derived from NVD, CISA KEV, FIRST.org EPSS and vendor advisories (CVE Program List v5); those sources change continuously and may be incomplete or incorrect. Verify every remediation against the vendor advisory before acting. Absence of a finding is not evidence that no vulnerability exists. Not endorsed by NVD, CISA, FIRST or any vendor named.

Raw record

{
  "id": "CVE-2023-46604",
  "title": "Apache ActiveMQ Deserialization of Untrusted Data Vulnerability",
  "description": "The Java OpenWire protocol marshaller is vulnerable to Remote Code \nExecution. This vulnerability may allow a remote attacker with network \naccess to either a Java-based OpenWire broker or client to run arbitrary\n shell commands by manipulating serialized class types in the OpenWire \nprotocol to cause either the client or the broker (respectively) to \ninstantiate any class on the classpath.\n\nUsers are recommended to upgrade\n both brokers and clients to version 5.15.16, 5.16.7, 5.17.6, or 5.18.3 \nwhich fixes this issue.",
  "severity": "critical",
  "cvss": 10,
  "epss": 100,
  "kev": 1,
  "vendor": "Apache",
  "product": "ActiveMQ",
  "published": "2023-11-02",
  "modified": "2026-06-17T06:31:11.370",
  "source": "nvd",
  "remediation": [],
  "disclaimer": "Informational only. Not a warranty of security, completeness or fitness for any purpose. Derived from NVD, CISA KEV, FIRST.org EPSS and vendor advisories (CVE Program List v5); those sources change continuously and may be incomplete or incorrect. Verify every remediation against the vendor advisory before acting. Absence of a finding is not evidence that no vulnerability exists. Not endorsed by NVD, CISA, FIRST or any vendor named."
}