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CVE-2023-46604VulnerabilityAdded to KEV 11/02/2023

CVE-2023-46604: Apache ActiveMQ Deserialization of Untrusted Data Vulnerability

Affects Apache ActiveMQSource CISA KEV

0

Exploited in the wild · used in ransomware campaigns · KEV due 23 Nov 2023 · public exploit available (Metasploit) · 99% EPSS : apply the vendor's fix or mitigations to Apache ActiveMQ now.

Data as of 10/24/2026, 22:15:59 UTC

CVSS 3.1 base score
10.0Critical
How severe the flaw is on the 0–10 CVSS scale.
Exploitation

Actively exploited – in CISA KEV since 11/02/2023

KEV deadline
11/23/2023 US federal agencies must patch by this date; a sensible deadline for everyone else.
Ransomware
Used in ransomware campaigns
EPSS
99.8% chance of exploitation in 30 days – higher than 99% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Public exploits
1 Metasploit module, a Nuclei detection templatePublic attack or detection tooling exists; see Public exploits below.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H

What to do

CISA required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Public exploits and detection

Public tooling indexed from Metasploit Framework, Exploit-DB and ProjectDiscovery nuclei-templates. Its existence raises the odds of exploitation; it does not confirm attacks.

Description

Apache ActiveMQ contains a deserialization of untrusted data vulnerability that may allow a remote attacker with network access to a broker to run shell commands by manipulating serialized class types in the OpenWire protocol to cause the broker to instantiate any class on the classpath.

Weaknesses

References

Community reviews

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