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Fencer Intel
critical 9.8

CVE-2016-8735 kev in the critical feed json

Apache Tomcat Improper Access Control vulnerability

published 2017-04-06 9 y ago modified 2026-08-25 2 mo ago also GHSA-cw54-59pw-4g8c , EUVD-2022-3642

cvss
9.8
version 3.1, CNA
cisa kev
Exploited
added 2023-05-12
epss
90.3%
EPSS 90.3% chance of exploitation in 30 days, percentile 99.8%
public exploits
0
none known

Summary

Remote code execution is possible with Apache Tomcat before 6.0.48, 7.x before 7.0.73, 8.x before 8.0.39, 8.5.x before 8.5.7, and 9.x before 9.0.0.M12 if JmxRemoteLifecycleListener is used and an attacker can reach JMX ports. The issue exists because this listener wasn't updated for consistency with the CVE-2016-3427 Oracle patch that affected credential types.

Patch / fix

cisa required action Apply updates per vendor instructions.

  • maven org.apache.tomcat:tomcat-catalina-jmx-remote 6.0.48, 7.0.73, 8.0.39, 8.5.7, 9.0.0.M12
  • maven org.apache.tomcat:tomcat-catalina 6.0.48, 7.0.73, 8.0.39, 8.5.7, 9.0.0.M12
  • apache tomcat 6.0.48, 7.0.73, 8.0.39, 8.5.7
  • tomcat6 Ubuntu 16.04 LTS 6.0.45+dfsg-1ubuntu0.1
  • tomcat7 Ubuntu 14.04 LTS 7.0.52-1ubuntu0.8
  • tomcat7 Ubuntu 16.04 LTS 7.0.68-1ubuntu0.3
  • tomcat8 Ubuntu 16.04 LTS 8.0.32-1ubuntu1.3
  • tomcat6 Ubuntu Pro 14.04 LTS 6.0.39-1ubuntu0.1+esm2

ubuntu advisories UBUNTU-CVE-2016-8735

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

  • tomcat7 jboss enterprise web server 3.1 7.0.70-16.ep7.el7
  • tomcat8 jboss enterprise web server 3.1 8.0.36-17.ep7.el7
  • mod_cluster jboss enterprise web server 3.1 1.3.5-2.Final_redhat_2.1.ep7.el7
  • tomcat7-lib jboss enterprise web server 3.1 7.0.70-16.ep7.el7
  • tomcat8-lib jboss enterprise web server 3.1 8.0.36-17.ep7.el7
  • tomcat-vault jboss enterprise web server 3.1 1.0.8-9.Final_redhat_2.1.ep7.el7
  • tomcat7-jsvc jboss enterprise web server 3.1 7.0.70-16.ep7.el7
  • tomcat8-jsvc jboss enterprise web server 3.1 8.0.36-17.ep7.el7

red hat advisories RHSA-2017:0456RHSA-2017:0455

  • tomcat6 SLES for SAP 11 SP4, SLES 11 SP4, SLES 11 SP3-TERADATA +2 more 6.0.53-0.56.1
  • tomcat SLES for SAP 12 SP1, SLES 12 SP1 8.0.32-10.13.2
  • tomcat SLES for SAP 12 SP2, SLES for Raspberry Pi 12 SP2, SLES 12 SP2 8.0.36-17.1
  • tomcat SLES for SAP 12, SLES 12-LTSS 7.0.78-7.13.4

suse advisories SUSE-SU-2017:1660-1SUSE-SU-2017:1632-1SUSE-SU-2016:3079-1SUSE-SU-2016:3081-1

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-2016-8735 updated cvss 8.1

tomcat: Remote code execution vulnerability in JmxRemoteLifecycleListener

  • Red Hat JBoss Enterprise Web Server 2 tomcat6, tomcat6-lib, tomcat6-log4j, tomcat6-javadoc, tomcat6-webapps, tomcat7 tomcat7, +6 more Red Hat JBoss Web Server 3 tomcat7 tomcat7, tomcat8 tomcat8
    affected: no fix planned “Will not fix”
  • Red Hat JBoss Web Server 3.1
    fixed: vendor fix RHSA-2017:0457
  • Red Hat JBoss Web Server 3.1 for RHEL 6 tomcat7 7.0.70-16.ep7.el6, tomcat8 8.0.36-17.ep7.el6, tomcat7-lib 7.0.70-16.ep7.el6, tomcat8-lib 8.0.36-17.ep7.el6, tomcat7-jsvc 7.0.70-16.ep7.el6, tomcat8-jsvc 8.0.36-17.ep7.el6, +31 more
    fixed: vendor fix RHSA-2017:0455
  • Red Hat JBoss Web Server 3.1 for RHEL 7 tomcat7 7.0.70-16.ep7.el7, tomcat8 8.0.36-17.ep7.el7, tomcat7-lib 7.0.70-16.ep7.el7, tomcat8-lib 8.0.36-17.ep7.el7, tomcat7-jsvc 7.0.70-16.ep7.el7, tomcat8-jsvc 8.0.36-17.ep7.el7, +31 more
    fixed: vendor fix RHSA-2017:0456
  • Red Hat Enterprise Linux 5 tomcat5 Red Hat Enterprise Linux 6 tomcat6, tomcat6-lib, tomcat6-log4j, tomcat6-javadoc, tomcat6-webapps, tomcat6-el-2.1-api, +4 more Red Hat Enterprise Linux 7 tomcat, tomcat-lib, tomcat-jsvc, tomcat-javadoc, tomcat-webapps, tomcat-el-2.2-api, +4 more Red Hat JBoss Data Grid 6 jbossweb jbossweb Red Hat JBoss Data Virtualization 6 jbossweb jbossweb Red Hat JBoss Enterprise Application Platform 5 jbossweb jbossweb
    +5 more products
    Red Hat JBoss Enterprise Application Platform 6 jbossweb jbossweb Red Hat JBoss Fuse 6 jbossweb jbossweb Red Hat JBoss Operations Network 3 jbossweb jbossweb Red Hat JBoss Portal 6 jbossweb jbossweb Red Hat Software Collections rh-java-common-tomcat-lib, rh-java-common-tomcat-javadoc, rh-java-common-tomcat-el-2.2-api, rh-java-common-tomcat-jsp-2.2-api, rh-java-common-tomcat-servlet-3.0-api
    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

Timeline

  1. Published
  2. Added to CISA KEV
  3. CISA patch deadline
  4. CISA SSVC: exploitation active

Known exploited

Added
3 y ago
Patch by
2023-06-02 (3 y ago)
Ransomware
Not known
Required action
Apply updates per vendor instructions.
Vendor, product
Apache, Tomcat
CISA name
Apache Tomcat Remote Code Execution Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
yes
Technical impact
total
Assessed
21 mo ago

Exploit prediction

90.34% chance of exploitation in the next 30 days, higher than 99.8% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P
GitHub 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H

Affected packages

ecosystem package affected fixed in
maven org.apache.tomcat:tomcat-catalina-jmx-remote
<6.0.48
>=7.0.0, <7.0.73
>=8.0.0, <8.0.39
>=8.5.0, <8.5.7
>=9.0.0.M1, <9.0.0.M12
6.0.48
7.0.73
8.0.39
8.5.7
9.0.0.M12
maven org.apache.tomcat:tomcat-catalina
<6.0.48
>=7.0.0, <7.0.73
>=8.0.0, <8.0.39
>=8.5.0, <8.5.7
>=9.0.0.M1, <9.0.0.M12
6.0.48
7.0.73
8.0.39
8.5.7
9.0.0.M12

Affected products

  • Apache Software Foundation Apache Tomcat

Classification

Weakness

References

Sources

Fencer Intel 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.