CVE-2018-11775

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.

Published: 2018-09-10 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-11775 is rated High Risk (67.3/100): CVSS High severity, with high exploitation likelihood (EPSS 6.99%, 93th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +6.50% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2018-11775

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.49% 6.99% +6.50%
2 2025-12-28 0.36% 0.49% +0.13%
3 2025-12-27 — 0.36% —

Full EPSS history (24 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-11775

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.4 3.0 HIGH
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 2.2 5.2 [email protected]
5.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 4.9 [email protected]

Weakness enumeration for CVE-2018-11775

GitHub Security Advisory for CVE-2018-11775

GHSA-m9w8-v359-9ffr · Severity: high · Ecosystem: maven — Improper Certificate Validation in Apache activemq-client

OS Trackers for CVE-2018-11775

vendor priority summary link
debian low CVE-2018-11775 low priority: Debian including 1 source packages (activemq), 4 status rows across 4 suites (bookworm, bullseye, sid, trixie): resolved 4. https://security-tracker.debian.org/tracker/CVE-2018-11775
redhat medium — https://access.redhat.com/security/cve/CVE-2018-11775
ubuntu medium CVE-2018-11775 medium priority: Ubuntu including 1 source packages (activemq), 16 status rows across 16 suites (bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, trusty, upstream, xenial): not-affected 13, released 2, DNE 1. https://ubuntu.com/security/CVE-2018-11775

Affected software / configurations for CVE-2018-11775

Vendor Product Version Raw CPE
apache activemq < 5.15.6 cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*
oracle enterprise_repository 12.1.3.0.0 cpe:2.3:a:oracle:enterprise_repository:12.1.3.0.0:*:*:*:*:*:*:*
oracle flexcube_private_banking 2.0.0.0 cpe:2.3:a:oracle:flexcube_private_banking:2.0.0.0:*:*:*:*:*:*:*
oracle flexcube_private_banking 2.2.0.1 cpe:2.3:a:oracle:flexcube_private_banking:2.2.0.1:*:*:*:*:*:*:*
oracle flexcube_private_banking 12.0.1.0 cpe:2.3:a:oracle:flexcube_private_banking:12.0.1.0:*:*:*:*:*:*:*
oracle flexcube_private_banking 12.0.3.0 cpe:2.3:a:oracle:flexcube_private_banking:12.0.3.0:*:*:*:*:*:*:*
oracle flexcube_private_banking 12.1.0.0 cpe:2.3:a:oracle:flexcube_private_banking:12.1.0.0:*:*:*:*:*:*:*

References for CVE-2018-11775

URL Tags
http://activemq.apache.org/security-advisories.data/CVE-2018-11775-announcement.txt Vendor Advisory
http://www.securityfocus.com/bid/105335 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1041618 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2019:3892
https://lists.apache.org/thread.html/03f91b1fb85686a848cee6b90112cf6059bd1b21b23bacaa11a962e1%40%3Cdev.activemq.apache.org%3E
https://lists.apache.org/thread.html/2b5c0039197a4949f29e1e2c9441ab38d242946b966f61c110808bcc%40%3Ccommits.activemq.apache.org%3E
https://lists.apache.org/thread.html/a859563f05fbe7c31916b3178c2697165bd9bbf5a65d1cf62aef27d2%40%3Ccommits.activemq.apache.org%3E
https://lists.apache.org/thread.html/fcbe6ad00f1de142148c20d813fae3765dc4274955e3e2f3ca19ff7b%40%3Cdev.activemq.apache.org%3E
https://lists.apache.org/thread.html/rb698ed085f79e56146ca24ab359c9ef95846618675ea1ef402e04a6d%40%3Ccommits.activemq.apache.org%3E
https://lists.debian.org/debian-lts-announce/2021/03/msg00005.html
https://www.oracle.com/security-alerts/cpuapr2020.html
https://www.oracle.com/security-alerts/cpujan2021.html
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html Patch Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html Patch Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
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