Threadlinqs IntelligenceStart free

VulnerabilityCVE-2023-46604Published 2023-10-27

CVE-2023-46604 — apache:activemq_legacy_openwire_module

criticalCISA KEV

As of 2025-11-04, CVE-2023-46604 is a CRITICAL-severity vulnerability in apache:activemq_legacy_openwire_module, CVSS v3.1 10, EPSS 94.4% (99.9th percentile). It is listed in the CISA Known Exploited Vulnerabilities catalog. Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2023-46604, most recently “Apache ActiveMQ OpenWire Deserialization RCE (CVE-2023-46604) — 6,400 Brokers Actively Exploited by HelloKitty, Kinsing, TellYouThePass and Andariel (Lazarus)”.

CVSS v3.1
10/10Critical
EPSS
94.4%Higher than 99.9% of scored CVEs
CISA KEV
ListedExploited in the wild
Tracked threats
1Campaigns referencing it
Priority
9/10Threadlinqs triage score
Published
Updated 2025-11-04
CVSS v3.1 10 (CRITICAL) · EPSS 94.4% (higher than 99.9% of all scored CVEs) · Priority 9/10 · Published 2023-10-27

Last updated:

What is 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.

The record classifies CVE-2023-46604 under weakness class CWE-502. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on integrity, availability. 6 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 1074 days ago.

Severity and exploitation probability

CVSS v3.1 base score
10 — CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H
EPSS (FIRST)
94.4% probability of exploitation in the next 30 days, higher than 99.9% of all scored CVEs
CISA KEV
Listed
Threadlinqs priority
9/10 — CISA KEV-listed, which Threadlinqs floors at 9
Published
2023-10-27, last modified 2025-11-04

Is CVE-2023-46604 being exploited?

CISA added CVE-2023-46604 to the Known Exploited Vulnerabilities catalog, which means the agency holds evidence of exploitation in the wild. It currently carries a trending score of 40 in the Threadlinqs vulnerability feed.

Affected products and versions

  • (vendor unspecified): netapp:e-series_santricity_unified_manager, apache:activemq_legacy_openwire_module, netapp:e-series_santricity_web_services_proxy, apache:activemq, debian:debian_linux, netapp:santricity_storage_plugin

How to fix CVE-2023-46604

No vendor patch reference has been recorded for CVE-2023-46604 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

Threat activity tracking CVE-2023-46604

1 tracked threat in the Threadlinqs corpus references CVE-2023-46604, either in the campaign’s CVE list or as an indicator on the campaign record.

Sources

Seeded from nvd and not yet processed by the Threadlinqs enrichment pipeline, so blank CVSS, EPSS or KEV fields above mean NOT MEASURED rather than measured-absent.