CVE-2016-2047

22

FAUCET Score

CVE-2016-2047 describes a vulnerability in MariaDB, Oracle MySQL, and Percona Server where the ssl_verify_server_cert function fails to properly validate server hostnames against X.509 certificate fields, allowing man-in-the-middle (MITM) attackers to spoof SSL servers. This medium-severity vulnerability has a CVSS score of 5.9, indicating a network-based attack with high impact on integrity, 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 for this CVE.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		>= 5.5.20, < 5.5.47CPE matchmatch criteria	cpe:2.3:a:mariadb:mariadb::::::::
		>= 10.0.0, < 10.0.23CPE matchmatch criteria	cpe:2.3:a:mariadb:mariadb::::::::
		>= 10.1.0, < 10.1.10CPE matchmatch criteria	cpe:2.3:a:mariadb:mariadb::::::::
		7CPE matchmatch criteria	cpe:2.3:o:oracle:linux:7:::::::*
		>= 5.5.0, <= 5.5.48CPE matchmatch criteria	cpe:2.3:a:oracle:mysql::::::::

CVSS Data

CVSS version used by this source: 3.0

5.9MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

Exploitability Score

2.2

Impact Score

3.6

CvssVersion

3.0

Exploit Intelligence

EPSS Score

3.74%

Probability of exploitation in next 30 days

EPSS Percentile

88.7%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0374 is in the 84th 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 (32)

oraclepatch availablevia nvd_reference

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: mariadb-1:5.5.47-1.el7_2

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: rh-mysql56-mysql-0:5.6.30-1.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: rh-mariadb100-mariadb-1:10.0.25-4.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: mysql55-mysql-0:5.5.50-1.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: mariadb55-mariadb-0:5.5.49-1.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUSFixed in: rh-mysql56-mysql-0:5.6.30-1.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUSFixed in: rh-mariadb100-mariadb-1:10.0.25-4.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUSFixed in: mysql55-mysql-0:5.5.50-1.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUSFixed in: mariadb55-mariadb-0:5.5.49-1.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUSFixed in: rh-mysql56-mysql-0:5.6.30-1.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUSFixed in: rh-mariadb100-mariadb-1:10.0.25-4.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUSFixed in: mysql55-mysql-0:5.5.50-1.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUSFixed in: mariadb55-mariadb-0:5.5.49-1.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-mysql56-mysql-0:5.6.30-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-mariadb100-mariadb-1:10.0.25-4.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: mysql55-mysql-0:5.5.50-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: mariadb55-mariadb-0:5.5.49-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUSFixed in: rh-mysql56-mysql-0:5.6.30-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUSFixed in: rh-mariadb100-mariadb-1:10.0.25-4.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUSFixed in: mysql55-mysql-0:5.5.50-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUSFixed in: mariadb55-mariadb-0:5.5.49-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUSFixed in: rh-mysql56-mysql-0:5.6.30-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUSFixed in: rh-mariadb100-mariadb-1:10.0.25-4.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUSFixed in: mysql55-mysql-0:5.5.50-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUSFixed in: mariadb55-mariadb-0:5.5.49-1.el7

redhatend of lifevia redhat_api

Product: Red Hat Enterprise Linux 5Fixed in: mysql55-mysql

redhatend of lifevia redhat_api

Product: Red Hat Enterprise Linux 6Fixed in: mysql

redhatend of lifevia redhat_api

Product: Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)Fixed in: mariadb-galera

redhatend of lifevia redhat_api

Product: Red Hat Enterprise Linux OpenStack Platform 6 (Juno)Fixed in: mariadb-galera

redhatend of lifevia redhat_api

Product: Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)Fixed in: mariadb-galera

redhatend of lifevia redhat_api

Product: Red Hat OpenStack Platform 8 (Liberty)Fixed in: mariadb-galera

Vendor Advisories (1)

redhatCVE-2016-2047Moderate

mysql: ssl-validate-cert incorrect hostname check

References

lists.opensuse.org / opensuse-security-announce/2016-05/msg00035.html

Mailing ListThird Party Advisory

lists.opensuse.org / opensuse-security-announce/2016-05/msg00053.html

Mailing ListThird Party Advisory

lists.opensuse.org / opensuse-security-announce/2016-06/msg00033.html

Mailing ListThird Party Advisory

lists.opensuse.org / opensuse-security-announce/2016-06/msg00034.html

Mailing ListThird Party Advisory

lists.opensuse.org / opensuse-security-announce/2016-06/msg00051.html

Mailing ListThird Party Advisory

lists.opensuse.org / opensuse-security-announce/2016-06/msg00053.html

Third Party Advisory

rhn.redhat.com / errata/RHSA-2016-0534.html

Third Party Advisory

rhn.redhat.com / errata/RHSA-2016-0705.html

Third Party Advisory

rhn.redhat.com / errata/RHSA-2016-1480.html

Third Party Advisory

rhn.redhat.com / errata/RHSA-2016-1481.html

Third Party Advisory

access.redhat.com / errata/RHSA-2016:1132

Third Party Advisory

mariadb.atlassian.net / browse/MDEV-9212

Vendor Advisory

mariadb.com / kb/en/mariadb/mariadb-10110-release-notes

Vendor Advisory

mariadb.com / kb/en/mariadb/mariadb-5547-release-notes

Vendor Advisory

mariadb.com / kb/en/mdb-10023-rn

Vendor Advisory

debian.org / security/2016/dsa-3453

Third Party Advisory

debian.org / security/2016/dsa-3557

Third Party Advisory

openwall.com / lists/oss-security/2016/01/26/3

Mailing ListThird Party Advisory

oracle.com / technetwork/security-advisory/cpuapr2016v3-2985753.html

PatchVendor Advisory

oracle.com / technetwork/topics/security/linuxbulletinapr2016-2952096.html

Third Party Advisory

securityfocus.com / bid/81810

Third Party AdvisoryVDB Entry

securitytracker.com / id/1035606

Third Party AdvisoryVDB Entry

ubuntu.com / usn/USN-2953-1

Third Party Advisory

ubuntu.com / usn/USN-2954-1

Third Party Advisory