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Fencer Vulns
high 7.4

CVE-2018-11775 json

Improper Certificate Validation in Apache activemq-client

published 2018-09-10 8 y ago modified 2026-06-17 4 mo ago also GHSA-m9w8-v359-9ffr , EUVD-2018-0638

cvss
7.4
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
7.0%
EPSS 7.0% chance of exploitation in 30 days, percentile 94%
public exploits
0
none known

Summary

TLS hostname verification when using the Apache ActiveMQ Client before 5.15.6 was missing which could make the client vulnerable to a MITM attack between a Java application using the ActiveMQ client and the ActiveMQ server. This is now enabled by default.

Patch / fix

  • maven org.apache.activemq:activemq-client 5.15.6
  • apache activemq 5.15.6
  • activemq Debian 13, Debian 12 5.15.6-1

debian advisories DEBIAN-CVE-2018-11775

  • activemq Ubuntu Pro 16.04 LTS 5.13.2+dfsg-2ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2018-11775

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-11775 updated cvss 6.8

activemq: ActiveMQ Client Missing TLS Hostname Verification

  • Red Hat JBoss Developer Studio 11 activemq activemq Red Hat JBoss A-MQ 6 activemq activemq
    affected: no fix planned “Out of support scope”
  • Red Hat JBoss Fuse 6 activemq activemq
    affected: no fix available
  • Red Hat JBoss Fuse Service Works 6 activemq activemq
    affected: no fix planned “Out of support scope”
  • Red Hat Fuse 7.5.0
    fixed: vendor fix RHSA-2019:3892
  • Red Hat Decision Manager 7 activemq-artemis activemq-artemis Red Hat JBoss Data Grid 7 activemq-artemis activemq-artemis Red Hat JBoss Enterprise Application Platform 7 activemq-artemis activemq-artemis Red Hat Process Automation 7 activemq-artemis activemq-artemis Red Hat Single Sign-On 7 activemq-artemis activemq-artemis Red Hat Virtualization 4 eap7-activemq-artemis
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

6.96% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 7.4 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
NVD 2.0 5.8 AV:N/AC:M/Au:N/C:P/I:P/A:N
GitHub 3.0 7.4 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected packages

ecosystem package affected fixed in
maven org.apache.activemq:activemq-client
<5.15.6
5.15.6

Affected products

  • Apache Software Foundation Apache ActiveMQ

Classification

Weakness
  • CWE-295 Improper Certificate Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.