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CVE-2016-6794

23
FAUCET Score

CVE-2016-6794 describes a security bypass vulnerability in Apache Tomcat versions 6.0.0 to 9.0.0.M9. A malicious web application could exploit a flaw in the system property replacement feature to bypass the SecurityManager and read sensitive system properties that should otherwise be restricted. This vulnerability has a CVSS score of 5.3 (Medium), indicating a low-impact information disclosure risk with low attack complexity and no required privileges. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.0.0, <= 6.0.45CPE matchmatch criteria
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
>= 7.0.0, <= 7.0.70CPE matchmatch criteria
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
>= 8.0, <= 8.0.36CPE matchmatch criteria
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
>= 8.5.0, <= 8.5.4CPE matchmatch criteria
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
9.0.0CPE matchmatch criteria
cpe:2.3:a:apache:tomcat:9.0.0:milestone1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
7.15%
Probability of exploitation in next 30 days
EPSS Percentile
93.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0715 is in the 91st percentile among its peer group of 23,705 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (33)

mavenpatch availablevia ghsa
Product: org.apache.tomcat:tomcatFixed in: 9.0.0.M10
mavenpatch availablevia ghsa
Product: org.apache.tomcat:tomcatFixed in: 6.0.47
mavenpatch availablevia ghsa
Product: org.apache.tomcat:tomcatFixed in: 7.0.72
mavenpatch availablevia ghsa
Product: org.apache.tomcat:tomcatFixed in: 8.0.37
mavenpatch availablevia ghsa
Product: org.apache.tomcat:tomcatFixed in: 8.5.5
oraclepatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 3 for RHEL 6Fixed in: jbcs-httpd24-apache-commons-daemon-jsvc-1:1.0.15-17.redhat_2.jbcs.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 3 for RHEL 6Fixed in: mod_cluster-0:1.3.5-2.Final_redhat_2.1.ep7.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 3 for RHEL 6Fixed in: tomcat7-0:7.0.70-16.ep7.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 3 for RHEL 6Fixed in: tomcat8-0:8.0.36-17.ep7.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 3 for RHEL 6Fixed in: tomcat-native-0:1.2.8-9.redhat_9.ep7.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 3 for RHEL 7Fixed in: hibernate4-eap6-0:4.2.23-1.Final_redhat_1.1.ep6.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 3 for RHEL 7Fixed in: jbcs-httpd24-0:1-3.jbcs.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 3 for RHEL 7Fixed in: jbcs-httpd24-apache-commons-daemon-0:1.0.15-1.redhat_2.1.jbcs.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 3 for RHEL 7Fixed in: jbcs-httpd24-apache-commons-daemon-jsvc-1:1.0.15-17.redhat_2.jbcs.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 3 for RHEL 7Fixed in: mod_cluster-0:1.3.5-2.Final_redhat_2.1.ep7.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 3 for RHEL 7Fixed in: tomcat7-0:7.0.70-16.ep7.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 3 for RHEL 7Fixed in: tomcat8-0:8.0.36-17.ep7.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 3 for RHEL 7Fixed in: tomcat-native-0:1.2.8-9.redhat_9.ep7.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 3 for RHEL 7Fixed in: tomcat-vault-0:1.0.8-9.Final_redhat_2.1.ep7.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 3 for RHEL 6Fixed in: tomcat-vault-0:1.0.8-9.Final_redhat_2.1.ep7.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: tomcat-0:7.0.76-2.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 3.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 3 for RHEL 6Fixed in: hibernate4-eap6-0:4.2.23-1.Final_redhat_1.1.ep6.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 3 for RHEL 6Fixed in: jbcs-httpd24-0:1-3.jbcs.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 3 for RHEL 6Fixed in: jbcs-httpd24-apache-commons-daemon-0:1.0.15-1.redhat_2.1.jbcs.el6
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat JBoss Enterprise Web Server 3Fixed in: tomcat8
redhatvendor investigatingvia redhat_api
Product: Red Hat JBoss Enterprise Web Server 3Fixed in: tomcat7
redhatend of lifevia redhat_api
Product: Red Hat JBoss Enterprise Web Server 2Fixed in: tomcat6
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: tomcat5
redhatend of lifevia redhat_api
Product: Red Hat JBoss Fuse 6Fixed in: jbossweb
redhatend of lifevia redhat_api
Product: Red Hat JBoss Enterprise Web Server 2Fixed in: tomcat7
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: tomcat6

Vendor Advisories (2)

mavenGHSA-2rvf-329f-p99gmedium

System Property Disclosure in Apache Tomcat

May 13, 2022
redhatCVE-2016-6794Low

tomcat: system property disclosure

Oct 27, 2016

References

rhn.redhat.com / errata/RHSA-2017-0457.html
Third Party Advisory
access.redhat.com / errata/RHSA-2017:0455
Third Party Advisory
access.redhat.com / errata/RHSA-2017:0456
Third Party Advisory
access.redhat.com / errata/RHSA-2017:2247
Third Party Advisory
lists.apache.org / thread.html/09d2f2c65ac4ff5da42f15dc2b0f78b655e50f1a42e8a9784134a9eb%40%3Cannounce.tomcat.apache.org%3E
lists.apache.org / thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551%40%3Cdev.tomcat.apache.org%3E
lists.apache.org / thread.html/37220405a377c0182d2afdbc36461c4783b2930fbeae3a17f1333113%40%3Cdev.tomcat.apache.org%3E
lists.apache.org / thread.html/388a323769f1dff84c9ec905455aa73fbcb20338e3c7eb131457f708%40%3Cdev.tomcat.apache.org%3E
lists.apache.org / thread.html/39ae1f0bd5867c15755a6f959b271ade1aea04ccdc3b2e639dcd903b%40%3Cdev.tomcat.apache.org%3E
lists.apache.org / thread.html/3d19773b4cf0377db62d1e9328bf9160bf1819f04f988315086931d7%40%3Cdev.tomcat.apache.org%3E
lists.apache.org / thread.html/6af47120905aa7d8fe12f42e8ff2284fb338ba141d3b77b8c7cb61b3%40%3Cdev.tomcat.apache.org%3E
lists.apache.org / thread.html/845312a10aabbe2c499fca94003881d2c79fc993d85f34c1f5c77424%40%3Cdev.tomcat.apache.org%3E
lists.apache.org / thread.html/88855876c33f2f9c532ffb75bfee570ccf0b17ffa77493745af9a17a%40%3Cdev.tomcat.apache.org%3E
lists.apache.org / thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc%40%3Cdev.tomcat.apache.org%3E
lists.apache.org / thread.html/b84ad1258a89de5c9c853c7f2d3ad77e5b8b2930be9e132d5cef6b95%40%3Cdev.tomcat.apache.org%3E
lists.apache.org / thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033662cfb%40%3Cdev.tomcat.apache.org%3E
lists.apache.org / thread.html/r03c597a64de790ba42c167efacfa23300c3d6c9fe589ab87fe02859c%40%3Cdev.tomcat.apache.org%3E
lists.apache.org / thread.html/r587e50b86c1a96ee301f751d50294072d142fd6dc08a8987ae9f3a9b%40%3Cdev.tomcat.apache.org%3E
lists.apache.org / thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c%40%3Cdev.tomcat.apache.org%3E
security.netapp.com / advisory/ntap-20180605-0001
Third Party Advisory
usn.ubuntu.com / 4557-1
Third Party Advisory
oracle.com / security-alerts/cpuoct2021.html
PatchThird Party Advisory
debian.org / security/2016/dsa-3720
Third Party Advisory
securityfocus.com / bid/93943
Broken Link
securitytracker.com / id/1037143
Broken Link