CVE-2016-6306

42

FAUCET Score

CVE-2016-6306 is an out-of-bounds read vulnerability in the certificate parser of OpenSSL versions before 1.0.1u and 1.0.2i, affecting products like Canonical, Debian, HP, Node.js, and Novell. This vulnerability carries a CVSS score of 5.9 (Medium), indicating a network-based attack with high impact on availability, but requiring high attack complexity. There is 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
		1.0.1CPE matchmatch criteria	cpe:2.3:a:openssl:openssl:1.0.1:::::::*
		1.0.1CPE matchmatch criteria	cpe:2.3:a:openssl:openssl:1.0.1:beta1::::::
		1.0.1CPE matchmatch criteria	cpe:2.3:a:openssl:openssl:1.0.1:beta2::::::
		1.0.1CPE matchmatch criteria	cpe:2.3:a:openssl:openssl:1.0.1:beta3::::::
		1.0.1aCPE matchmatch criteria	cpe:2.3:a:openssl:openssl:1.0.1a:::::::*

CVSS Data

CVSS version used by this source: 3.1

5.9MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

Exploitability Score

2.2

Impact Score

3.6

CvssVersion

3.1

Exploit Intelligence

EPSS Score

41.68%

Probability of exploitation in next 30 days

EPSS Percentile

98.5%

Percentile rank of EPSS score among Peer Group

As of 2026-07-26

Model: v2026.06.15

This CVE's current EPSS score of 0.4168 is in the 99th percentile among its peer group of 19,955 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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 (40)

oraclepatch availablevia nvd_reference

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 6Fixed in: jbcs-httpd24-apache-commons-daemon-0:1.1.0-1.redhat_2.1.jbcs.el6

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 6Fixed in: jbcs-httpd24-apache-commons-daemon-jsvc-1:1.1.0-1.redhat_2.jbcs.el6

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 6Fixed in: jbcs-httpd24-apr-0:1.6.3-14.jbcs.el6

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 6Fixed in: jbcs-httpd24-apr-util-0:1.6.1-9.jbcs.el6

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 6Fixed in: jbcs-httpd24-httpd-0:2.4.29-17.jbcs.el6

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 6Fixed in: jbcs-httpd24-mod_auth_kerb-0:5.4-36.jbcs.el6

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 6Fixed in: jbcs-httpd24-mod_bmx-0:0.9.6-17.GA.jbcs.el6

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 6Fixed in: jbcs-httpd24-mod_cluster-native-0:1.3.8-1.Final_redhat_2.jbcs.el6

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 6Fixed in: jbcs-httpd24-mod_jk-0:1.2.43-1.redhat_1.jbcs.el6

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 6Fixed in: jbcs-httpd24-mod_rt-0:2.4.1-19.GA.jbcs.el6

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 6Fixed in: jbcs-httpd24-mod_security-0:2.9.1-23.GA.jbcs.el6

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 6Fixed in: jbcs-httpd24-nghttp2-0:1.29.0-8.jbcs.el6

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 6Fixed in: jbcs-httpd24-openssl-1:1.0.2n-11.jbcs.el6

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-apache-commons-daemon-0:1.1.0-1.redhat_2.1.jbcs.el7

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-apache-commons-daemon-jsvc-1:1.1.0-1.redhat_2.jbcs.el7

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-apr-0:1.6.3-14.jbcs.el7

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-apr-util-0:1.6.1-9.jbcs.el7

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-httpd-0:2.4.29-17.jbcs.el7

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-mod_auth_kerb-0:5.4-36.jbcs.el7

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-mod_cluster-native-0:1.3.8-1.Final_redhat_2.jbcs.el7

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-mod_jk-0:1.2.43-1.redhat_1.jbcs.el7

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-mod_rt-0:2.4.1-19.GA.jbcs.el7

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-mod_security-0:2.9.1-23.GA.jbcs.el7

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-nghttp2-0:1.29.0-8.jbcs.el7

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-openssl-1:1.0.2n-11.jbcs.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 6Fixed in: openssl-0:1.0.1e-48.el6_8.3

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: openssl-1:1.0.1e-51.el7_2.7

redhatpatch availablevia redhat_api

Product: Text-Only JBCS

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-mod_bmx-0:0.9.6-17.GA.jbcs.el7

redhatvendor investigatingvia redhat_api

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

redhatno patchvia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 6Fixed in: openssl

redhatend of lifevia redhat_api

Product: Red Hat Enterprise Linux 5Fixed in: openssl097a

redhatend of lifevia redhat_api

Product: Red Hat Enterprise Linux 6Fixed in: openssl098e

redhatend of lifevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: openssl098e

redhatend of lifevia redhat_api

Product: Red Hat Enterprise Linux 4Fixed in: openssl

redhatend of lifevia redhat_api

Product: Red Hat JBoss Enterprise Web Server 1Fixed in: openssl

redhatend of lifevia redhat_api

Product: Red Hat JBoss Enterprise Web Server 2Fixed in: openssl

redhatend of lifevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 5Fixed in: openssl

redhatend of lifevia redhat_api

Product: Red Hat Enterprise Linux 5Fixed in: openssl

Vendor Advisories (1)

redhatCVE-2016-6306Low

openssl: certificate message OOB reads

References

kb.juniper.net / InfoCenter/index

Third Party Advisory

lists.opensuse.org / opensuse-security-announce/2016-09/msg00022.html

Mailing ListThird Party Advisory

lists.opensuse.org / opensuse-security-announce/2016-09/msg00023.html

Third Party Advisory

lists.opensuse.org / opensuse-security-announce/2016-09/msg00024.html

Mailing ListThird Party Advisory

lists.opensuse.org / opensuse-security-announce/2016-09/msg00031.html

Mailing ListThird Party Advisory

lists.opensuse.org / opensuse-security-announce/2016-10/msg00005.html

Third Party Advisory

lists.opensuse.org / opensuse-security-announce/2016-10/msg00011.html

Third Party Advisory

lists.opensuse.org / opensuse-security-announce/2016-10/msg00012.html

Mailing ListThird Party Advisory

lists.opensuse.org / opensuse-security-announce/2016-10/msg00013.html

Mailing ListThird Party Advisory

lists.opensuse.org / opensuse-security-announce/2016-10/msg00021.html

Mailing ListThird Party Advisory

lists.opensuse.org / opensuse-security-announce/2016-10/msg00029.html

Third Party Advisory

lists.opensuse.org / opensuse-security-announce/2017-10/msg00010.html

Mailing ListThird Party Advisory

lists.opensuse.org / opensuse-security-announce/2017-10/msg00011.html

Third Party Advisory

lists.opensuse.org / opensuse-security-announce/2018-02/msg00032.html

Mailing ListThird Party Advisory

rhn.redhat.com / errata/RHSA-2016-1940.html

Third Party Advisory

access.redhat.com / errata/RHSA-2018:2185

Third Party Advisory

access.redhat.com / errata/RHSA-2018:2186

Third Party Advisory

access.redhat.com / errata/RHSA-2018:2187

Third Party Advisory

bto.bluecoat.com / security-advisory/sa132

Third Party Advisory

cert-portal.siemens.com / productcert/pdf/ssa-412672.pdf

seclists.org / fulldisclosure/2017/Jul/31

Mailing ListThird Party Advisory

git.openssl.org

h20566.www2.hpe.com / hpsc/doc/public/display

Third Party Advisory

h20566.www2.hpe.com / portal/site/hpsc/public/kb/docDisplay

Third Party Advisory

kb.pulsesecure.net / articles/Pulse_Security_Advisories/SA40312

Third Party Advisory

kc.mcafee.com / corporate/index

Third Party Advisory

nodejs.org / en/blog/vulnerability/september-2016-security-releases

Vendor Advisory

security.freebsd.org / advisories/FreeBSD-SA-16:26.openssl.asc

Third Party Advisory

security.gentoo.org / glsa/201612-16

Third Party Advisory

support.f5.com / csp/article/K90492697

Third Party Advisory

support.hpe.com / hpsc/doc/public/display

Third Party Advisory

support.hpe.com / hpsc/doc/public/display

Third Party Advisory

arista.com / en/support/advisories-notices/security-advisories/1749-security-advisory-24

Third Party Advisory

openssl.org / news/secadv/20160922.txt

Vendor Advisory

oracle.com / security-alerts/cpuapr2020.html

Third Party Advisory

oracle.com / security-alerts/cpujan2020.html

Third Party Advisory

oracle.com / security-alerts/cpujul2020.html

Third Party Advisory

oracle.com / security-alerts/cpuoct2020.html

Third Party Advisory

oracle.com / technetwork/security-advisory/cpujul2019-5072835.html

PatchThird Party Advisory

tenable.com / security/tns-2016-16

Third Party Advisory

tenable.com / security/tns-2016-20

Third Party Advisory

tenable.com / security/tns-2016-21

Third Party Advisory

www-01.ibm.com / support/docview.wss

Third Party Advisory

debian.org / security/2016/dsa-3673

Third Party Advisory

huawei.com / en/psirt/security-advisories/huawei-sa-20170322-01-openssl-en

Third Party Advisory

oracle.com / technetwork/security-advisory/cpuapr2018-3678067.html

PatchThird Party Advisory

oracle.com / technetwork/security-advisory/cpujan2018-3236628.html

PatchThird Party Advisory

oracle.com / technetwork/security-advisory/cpujul2017-3236622.html

PatchThird Party Advisory

oracle.com / technetwork/security-advisory/cpuoct2016-2881722.html

PatchThird Party Advisory

oracle.com / technetwork/security-advisory/cpuoct2017-3236626.html

PatchThird Party Advisory

oracle.com / technetwork/topics/security/linuxbulletinoct2016-3090545.html

Third Party Advisory

oracle.com / technetwork/topics/security/ovmbulletinoct2016-3090547.html

Third Party Advisory

securityfocus.com / bid/93153

Third Party AdvisoryVDB Entry

securitytracker.com / id/1036885

Third Party AdvisoryVDB Entry

ubuntu.com / usn/USN-3087-1

Third Party Advisory

ubuntu.com / usn/USN-3087-2

Third Party Advisory