CVE-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 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.
- Published Oct 27, 2023
- CVSS 9.8 critical
- 99.9% chance of exploitation in the next 30 days (EPSS)
- In CISA's Known Exploited Vulnerabilities catalog
- A Metasploit module exploits it
Affected software
In the news
- Armatura LLC Armatura One CISA ·
- Exploits and vulnerabilities in Q2 2026 Securelist ·
- The Return of the Kinsing VulnCheck Blog ·