CVE-2016-3110

25

FAUCET Score

CVE-2016-3110 describes a denial-of-service vulnerability in mod_cluster, specifically affecting Red Hat JBoss Web Server 2.1 and other related Fedora and Red Hat products. Remote attackers can trigger an Apache http server crash by sending a specially crafted MCMP message containing a series of equals characters after a valid element. This vulnerability has a CVSS v3 score of 7.5 (HIGH), indicating a network-based attack with low complexity that can lead to high availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		6.0.0CPE matchmatch criteria	cpe:2.3:a:redhat:jboss_enterprise_application_platform:6.0.0:::::::*
		6.4.0CPE matchmatch criteria	cpe:2.3:a:redhat:jboss_enterprise_application_platform:6.4.0:::::::*
		2.0.0CPE matchmatch criteria	cpe:2.3:a:redhat:jboss_enterprise_web_server:2.0.0:::::::*
		2.1CPE matchmatch criteria	cpe:2.3:a:redhat:jboss_enterprise_web_server:2.1:::::::*
		28CPE matchmatch criteria	cpe:2.3:o:fedoraproject:fedora:28:::::::*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

Exploitability Score

3.9

Impact Score

3.6

CvssVersion

3.0

Exploit Intelligence

EPSS Score

3.64%

Probability of exploitation in next 30 days

EPSS Percentile

88.4%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0364 is in the 79th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (32)

mavenpatch availablevia ghsa

Product: org.jboss.mod_cluster:mod_cluster-parentFixed in: 1.3.3.Final

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 6.4Fixed in: mod_cluster

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 6Fixed in: hornetq-native-0:2.3.25-4.SP11_redhat_1.ep6.el6

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 6Fixed in: httpd-0:2.2.26-54.ep6.el6

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 6Fixed in: jbcs-httpd24-0:1-3.jbcs.el6

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 6Fixed in: jbcs-httpd24-openssl-1:1.0.2h-4.jbcs.el6

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 6Fixed in: mod_cluster-native-0:1.2.13-3.Final_redhat_2.ep6.el6

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 6Fixed in: mod_jk-0:1.2.41-2.redhat_4.ep6.el6

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 6Fixed in: tomcat-native-0:1.1.34-5.redhat_1.ep6.el6

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 7Fixed in: hornetq-native-0:2.3.25-4.SP11_redhat_1.ep6.el7

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 7Fixed in: httpd22-0:2.2.26-56.ep6.el7

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 7Fixed in: jbcs-httpd24-0:1-3.jbcs.el7

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 7Fixed in: jbcs-httpd24-openssl-1:1.0.2h-4.jbcs.el7

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 7Fixed in: mod_cluster-native-0:1.2.13-3.Final_redhat_2.ep6.el7

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 7Fixed in: mod_jk-0:1.2.41-2.redhat_4.ep6.el7

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 7Fixed in: tomcat-native-0:1.1.34-5.redhat_1.ep6.el7

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Web Server 2 for RHEL 6Fixed in: httpd-0:2.2.26-54.ep6.el6

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Web Server 2 for RHEL 6Fixed in: jbcs-httpd24-0:1-3.jbcs.el6

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Web Server 2 for RHEL 6Fixed in: jbcs-httpd24-openssl-1:1.0.2h-4.jbcs.el6

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Web Server 2 for RHEL 6Fixed in: mod_cluster-0:1.2.13-1.Final_redhat_1.1.ep6.el6

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Web Server 2 for RHEL 6Fixed in: mod_cluster-native-0:1.2.13-3.Final_redhat_2.ep6.el6

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Web Server 2 for RHEL 6Fixed in: mod_jk-0:1.2.41-2.redhat_3.ep6.el6

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Web Server 2 for RHEL 6Fixed in: tomcat-native-0:1.1.34-5.redhat_1.ep6.el6

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Web Server 2 for RHEL 7Fixed in: httpd22-0:2.2.26-56.ep6.el7

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Web Server 2 for RHEL 7Fixed in: jbcs-httpd24-0:1-3.jbcs.el7

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Web Server 2 for RHEL 7Fixed in: jbcs-httpd24-openssl-1:1.0.2h-4.jbcs.el7

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Web Server 2 for RHEL 7Fixed in: mod_cluster-0:1.2.13-1.Final_redhat_1.1.ep6.el7

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Web Server 2 for RHEL 7Fixed in: mod_cluster-native-0:1.2.13-3.Final_redhat_2.ep6.el7

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Web Server 2 for RHEL 7Fixed in: mod_jk-0:1.2.41-2.redhat_3.ep6.el7

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Web Server 2 for RHEL 7Fixed in: tomcat-native-0:1.1.34-5.redhat_1.ep6.el7

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Web Server 2.1

redhatno patchvia redhat_api

Product: Red Hat JBoss Enterprise Web Server 3Fixed in: mod_cluster

Vendor Advisories (2)

mavenGHSA-68qq-3phh-53j7high

mod_cluster Denial of Service vulnerability

redhatCVE-2016-3110Moderate

mod_cluster: remotely Segfault Apache http server

References

rhn.redhat.com / errata/RHSA-2016-1648.html

Vendor Advisory

rhn.redhat.com / errata/RHSA-2016-1649.html

Vendor Advisory

rhn.redhat.com / errata/RHSA-2016-1650.html

Broken Link

rhn.redhat.com / errata/RHSA-2016-2054.html

Vendor Advisory

rhn.redhat.com / errata/RHSA-2016-2055.html

Vendor Advisory

rhn.redhat.com / errata/RHSA-2016-2056.html

Broken Link

bugzilla.redhat.com / show_bug.cgi

Issue Tracking

lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/6JMA2YLPK6SEUVF5Q3QEANHYEPRZA2RI

lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/CX5QNNIVAUB2VVDV6TR3YMFTL6VRKOBO

lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/HE5YZTBZRXCMQFT5LDLZG2HAYBKMYQLL

securityfocus.com / bid/92584

Third Party AdvisoryVDB Entry