CVE-2023-46604
CriticalExploitedPublic exploitThe Java OpenWire protocol marshaller is vulnerable to Remote Code Execution.
Published Nov 6, 2023 · Updated Sep 8, 2026 · Also known as BIT-activemq-2023-46604, DEBIAN-CVE-2023-46604, GHSA-crg9-44h2-xw35, ROOT-APP-MAVEN-CVE-2023-46604, TR-23-0624, UBUNTU-CVE-2023-46604
Key Facts
Patch immediately- CVE-2023-46604 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Activemq (Apache), Activemq Legacy Openwire Module (Apache), E-Series Santricity Unified Manager (Netapp) and 10 more products.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Nov 2, 2023 and is known to be used in ransomware campaigns. Public exploit code is available.
- EPSS estimates a 100% probability of exploitation in the next 30 days.
- Fixed versions are available, including Activemq 5.13.2+dfsg-2ubuntu0.1~esm1, Activemq 5.15.11-1ubuntu0.1~esm1, Activemq 5.15.16.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
100%
Higher than 99.9% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings, used by ransomware
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2023-46604 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Nov 2, 2023 | Nov 23, 2023 | Known |
| Industry KEV feed | Nov 2, 2023 | Nov 23, 2023 | Known |
| CIRCL KEV | Nov 2, 2023 | Nov 23, 2023 | Known |
| ENISA EUVD | Nov 2, 2023 | n/a | Not reported |
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Affected Products
39 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| ActivemqApache | See advisory | 5.15.16 |
| Activemq Legacy Openwire ModuleApache | See advisory | 5.15.16 |
| E-Series Santricity Unified ManagerNetapp | See advisory | n/a |
| E-Series Santricity Web Services ProxyNetapp | See advisory | n/a |
| Santricity Storage PluginNetapp | See advisory | n/a |
Patched Releases
Activemq
5.13.2+dfsg-2ubuntu0.1~esm1, 5.15.11-1ubuntu0.1~esm1, 5.15.16, 5.15.16-0+deb10u1, 5.15.8-2~18.04.1~esm1, 5.16.1-1+deb11u1, 5.16.1-1ubuntu0.1, 5.16.1-1ubuntu0.1~esm1, 5.16.7, 5.17.2+dfsg-2+deb12u1, 5.17.6, 5.17.6+dfsg-1, 5.18.3
Activemq Legacy Openwire Module
5.15.16
io.root.org.apache.activemq:activemq-client
5.18.3-root.io.10, 5.18.3-root.io.11, 5.18.3-root.io.12, 5.18.3-root.io.2, 5.18.3-root.io.3, 5.18.3-root.io.7, 5.18.3-root.io.8, 5.18.3-root.io.9
io.root.org.apache.activemq:activemq-openwire-legacy
5.18.3-root.io.10, 5.18.3-root.io.11, 5.18.3-root.io.12, 5.18.3-root.io.4, 5.18.3-root.io.8, 5.18.3-root.io.9
jboss-amq
6/amq63-openshift:1.4-50
org.apache.activemq:activemq-client
5.15.16, 5.16.7, 5.17.6, 5.18.3, 5.18.3-aikido.10, 5.18.3-aikido.11, 5.18.3-aikido.12
org.apache.activemq:activemq-openwire-legacy
5.15.16, 5.16.7, 5.17.6, 5.18.3, 5.18.3-aikido.10, 5.18.3-aikido.11, 5.18.3-aikido.12
rootio-activemq
5.16.1-1+deb11u1, 5.17.2+dfsg-2+deb12u1, 5.17.6+dfsg-1
Timeline
Added to CISA KEV
Nov 2, 2023
Added to Industry KEV feed
Nov 2, 2023
Added to CIRCL KEV
Nov 2, 2023
Added to ENISA EUVD
Nov 2, 2023
Publicly disclosed
Nov 6, 2023
Last updated
Sep 8, 2026
Weakness Type
- CWE-502 Deserialization of Untrusted Data
References
- advisoryRHSA-2023:6849
- advisoryRHSA-2023:6866
- advisoryRHSA-2023:6877
- advisoryRHSA-2023:6878
- advisoryRHSA-2023:6879
FAQ
Common Questions.
The Java OpenWire protocol marshaller is vulnerable to Remote Code Execution.
Affected: Activemq (Apache); Activemq Legacy Openwire Module (Apache); E-Series Santricity Unified Manager (Netapp), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Nov 2, 2023 and is known to be used in ransomware campaigns.
Yes. It was added on Nov 2, 2023 with a federal remediation due date of Nov 23, 2023.
Public exploit code is available.
Fixed versions are available, including Activemq 5.13.2+dfsg-2ubuntu0.1~esm1, Activemq 5.15.11-1ubuntu0.1~esm1, Activemq 5.15.16.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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