Unspecified vulnerability in Oracle MySQL Server 5.5.38 and earlier allows remote authenticated users to affect availability via vectors re…

published 2014-10-15 12 y ago modified 2026-06-17 4 mo ago also EUVD-2014-6399

cvss: 4.0; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 2.7%; EPSS 2.7% chance of exploitation in 30 days, percentile 85%
public exploits: 0; none known

Unspecified vulnerability in Oracle MySQL Server 5.5.38 and earlier allows remote authenticated users to affect availability via vectors related to SERVER:DDL.

Patch / fix

fixed in 1 distros 3 links 1

mariadb mariadb 5.5.39, 10.0.13

ubuntu red hat suse

mysql-5.5 Ubuntu 14.04 LTS 5.5.40-0ubuntu0.14.04.1

ubuntu advisories UBUNTU-CVE-2014-6520

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

mariadb55-mariadb RHEL 1 SOFTWARE_COLLECTIONS 5.5.40-10.el6
mariadb55-mariadb RHEL 1 SOFTWARE_COLLECTIONS 5.5.40-10.el7
mariadb55-mariadb-libs RHEL 1 SOFTWARE_COLLECTIONS 5.5.40-10.el6
mariadb55-mariadb-libs RHEL 1 SOFTWARE_COLLECTIONS 5.5.40-10.el7
mariadb55-mariadb-test RHEL 1 SOFTWARE_COLLECTIONS 5.5.40-10.el6
mariadb55-mariadb-test RHEL 1 SOFTWARE_COLLECTIONS 5.5.40-10.el7
mariadb55-mariadb-bench RHEL 1 SOFTWARE_COLLECTIONS 5.5.40-10.el6
mariadb55-mariadb-bench RHEL 1 SOFTWARE_COLLECTIONS 5.5.40-10.el7

red hat advisories RHSA-2014:1862 RHSA-2014:1940 RHSA-2014:1937 RHSA-2014:1861 RHSA-2014:1860 RHSA-2014:1859

mariadb SLES for SAP 12, SLES 12, SLED 12 +2 more 10.0.16-15.1

suse advisories SUSE-SU-2015:0743-1

oracle.com/technetwork/topics/security/cpuoct2014-1972960.html advisory

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-2014-6520 updated 2026-11-05 cvss 4.0

mysql: unspecified vulnerability related to SERVER:DDL (CPU October 2014)

Red Hat Enterprise Linux 6 mysql, mysql-libs, mysql-test, mysql-bench, mysql-server, mysql-embedded
under investigation
Red Hat Enterprise Linux (v. 5 server) mysql55-mysql 5.5.40-2.el5, mysql55-mysql-libs 5.5.40-2.el5, mysql55-mysql-test 5.5.40-2.el5, mysql55-mysql-bench 5.5.40-2.el5, mysql55-mysql-server 5.5.40-2.el5
fixed: vendor fix RHSA-2014:1859
Red Hat Enterprise Linux Client (v. 7) mariadb 5.5.40-1.el7_0, mariadb-libs 5.5.40-1.el7_0, mariadb-server 5.5.40-1.el7_0 Red Hat Enterprise Linux Client Optional (v. 7) mariadb-test 5.5.40-1.el7_0, mariadb-bench 5.5.40-1.el7_0, mariadb-embedded 5.5.40-1.el7_0 Red Hat Enterprise Linux ComputeNode (v. 7) mariadb 5.5.40-1.el7_0, mariadb-libs 5.5.40-1.el7_0 Red Hat Enterprise Linux ComputeNode Optional (v. 7) mariadb-test 5.5.40-1.el7_0, mariadb-bench 5.5.40-1.el7_0, mariadb-server 5.5.40-1.el7_0, mariadb-embedded 5.5.40-1.el7_0
fixed: vendor fix RHSA-2014:1861
Red Hat Enterprise Linux Desktop (v. 5 client) mysql55-mysql 5.5.40-2.el5, mysql55-mysql-libs 5.5.40-2.el5, mysql55-mysql-test 5.5.40-2.el5, mysql55-mysql-bench 5.5.40-2.el5, mysql55-mysql-server 5.5.40-2.el5 Red Hat Enterprise Linux Desktop Workstation (v. 5 client) mysql55-mysql 5.5.40-2.el5
fixed: vendor fix RHSA-2014:1859
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6 mariadb-galera 5.5.40-2.el6ost, mariadb-galera-common 5.5.40-2.el6ost, mariadb-galera-server 5.5.40-2.el6ost
fixed: vendor fix RHSA-2014:1937
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7 mariadb-galera 5.5.40-2.el7ost, mariadb-galera-common 5.5.40-2.el7ost, mariadb-galera-server 5.5.40-2.el7ost
fixed: vendor fix RHSA-2014:1940
Red Hat Enterprise Linux Server (v. 7) mariadb 5.5.40-1.el7_0, mariadb-libs 5.5.40-1.el7_0, mariadb-test 5.5.40-1.el7_0, mariadb-bench 5.5.40-1.el7_0, mariadb-server 5.5.40-1.el7_0 Red Hat Enterprise Linux Server Optional (v. 7) mariadb-embedded 5.5.40-1.el7_0 Red Hat Enterprise Linux Workstation (v. 7) mariadb 5.5.40-1.el7_0, mariadb-libs 5.5.40-1.el7_0, mariadb-test 5.5.40-1.el7_0, mariadb-bench 5.5.40-1.el7_0, mariadb-server 5.5.40-1.el7_0 Red Hat Enterprise Linux Workstation Optional (v. 7) mariadb-embedded 5.5.40-1.el7_0
fixed: vendor fix RHSA-2014:1861
Red Hat Software Collections 1 for Red Hat Enterprise Linux Server (v. 6) mysql55-mysql 5.5.40-1.el6, mariadb55-mariadb 5.5.40-10.el6, mysql55-mysql-libs 5.5.40-1.el6, mysql55-mysql-test 5.5.40-1.el6, mysql55-mysql-bench 5.5.40-1.el6, mysql55-mysql-server 5.5.40-1.el6, +4 more Red Hat Software Collections 1 for Red Hat Enterprise Linux Server (v. 7) mysql55-mysql 5.5.40-1.el7, mariadb55-mariadb 5.5.40-10.el7, mysql55-mysql-libs 5.5.40-1.el7, mysql55-mysql-test 5.5.40-1.el7, mysql55-mysql-bench 5.5.40-1.el7, mysql55-mysql-server 5.5.40-1.el7, +4 more Red Hat Software Collections 1 for Red Hat Enterprise Linux Server EUS (v. 6.4) mysql55-mysql 5.5.40-1.el6, mariadb55-mariadb 5.5.40-10.el6, mysql55-mysql-libs 5.5.40-1.el6, mysql55-mysql-test 5.5.40-1.el6, mysql55-mysql-bench 5.5.40-1.el6, mysql55-mysql-server 5.5.40-1.el6, +4 more Red Hat Software Collections 1 for Red Hat Enterprise Linux Server EUS (v. 6.5) mysql55-mysql 5.5.40-1.el6, mariadb55-mariadb 5.5.40-10.el6, mysql55-mysql-libs 5.5.40-1.el6, mysql55-mysql-test 5.5.40-1.el6, mysql55-mysql-bench 5.5.40-1.el6, mysql55-mysql-server 5.5.40-1.el6, +4 more Red Hat Software Collections 1 for Red Hat Enterprise Linux Server EUS (v. 6.6) mysql55-mysql 5.5.40-1.el6, mariadb55-mariadb 5.5.40-10.el6, mysql55-mysql-libs 5.5.40-1.el6, mysql55-mysql-test 5.5.40-1.el6, mysql55-mysql-bench 5.5.40-1.el6, mysql55-mysql-server 5.5.40-1.el6, +4 more Red Hat Software Collections 1 for Red Hat Enterprise Linux Workstation (v. 6) mysql55-mysql 5.5.40-1.el6, mariadb55-mariadb 5.5.40-10.el6, mysql55-mysql-libs 5.5.40-1.el6, mysql55-mysql-test 5.5.40-1.el6, mysql55-mysql-bench 5.5.40-1.el6, mysql55-mysql-server 5.5.40-1.el6, +4 more

+1 more productsfewer

Red Hat Software Collections 1 for Red Hat Enterprise Linux Workstation (v. 7) mysql55-mysql 5.5.40-1.el7, mariadb55-mariadb 5.5.40-10.el7, mysql55-mysql-libs 5.5.40-1.el7, mysql55-mysql-test 5.5.40-1.el7, mysql55-mysql-bench 5.5.40-1.el7, mysql55-mysql-server 5.5.40-1.el7, +4 more

fixed: vendor fix RHSA-2014:1862

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

Exploit prediction

2.67% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	2.0	4.0	AV:N/AC:L/Au:S/C:N/I:N/A:P

Classification

Technology feeds

References

oracle.com /technetwork/topics/security/cpuoct2014-1972960.html
patch, vendor-advisory
lists.opensuse.org /opensuse-security-announce/2015-04/msg00016.html
vendor-advisory, mailing-list, third-party-advisory
oracle.com /technetwork/topics/security/bulletinoct2015-2511968.html
vendor-advisory
securityfocus.com /bid/70510
vdb-entry, third-party-advisory

Sources

CVE List CVE-2014-6520
NVD CVE-2014-6520

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.

Summary