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Fencer Vulns
high 7.2

CVE-2020-14678 json

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: Privileges).

published 2020-07-15 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-6814

cvss
7.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known

Summary

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: Privileges). Supported versions that are affected are 8.0.20 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in takeover of MySQL Server. CVSS 3.1 Base Score 7.2 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).

Patch / fix

  • mysql-8.0 Ubuntu 20.04 LTS 8.0.21-0ubuntu0.20.04.3

ubuntu advisories UBUNTU-CVE-2020-14678

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

  • mecab RHEL 8, RHEL 8.1 EUS, RHEL 8.0 E4S 0.996-1.module+el8.0.0+3898+e09bb8de.9
  • mysql RHEL 8 8.0.21-1.module+el8.2.0+7855+47abd494
  • mysql-libs RHEL 8 8.0.21-1.module+el8.2.0+7855+47abd494
  • mysql-test RHEL 8 8.0.21-1.module+el8.2.0+7855+47abd494
  • mecab-ipadic RHEL 8, RHEL 8.1 EUS, RHEL 8.0 E4S 2.7.0.20070801-16.module+el8.0.0+3898+e09bb8de
  • mysql-common RHEL 8 8.0.21-1.module+el8.2.0+7855+47abd494
  • mysql-errmsg RHEL 8 8.0.21-1.module+el8.2.0+7855+47abd494
  • mysql-server RHEL 8 8.0.21-1.module+el8.2.0+7855+47abd494

red hat advisories RHSA-2020:3732RHSA-2020:3518RHSA-2020:3757RHSA-2020:3755

  • mecab AlmaLinux 8 0.996-1.module_el8.4.0+2532+b8928c02.9
  • mecab AlmaLinux 8 0.996-1.module_el8.5.0+33+8bc5f36a.9
  • mecab-ipadic AlmaLinux 8 2.7.0.20070801-16.module_el8.5.0+33+8bc5f36a
  • mecab-ipadic AlmaLinux 8 2.7.0.20070801-16.module_el8.4.0+2532+b8928c02
  • mecab-ipadic-EUCJP AlmaLinux 8 2.7.0.20070801-16.module_el8.5.0+33+8bc5f36a
  • mecab-ipadic-EUCJP AlmaLinux 8 2.7.0.20070801-16.module_el8.4.0+2532+b8928c02

almalinux advisories ALSA-2020:3732

  • mecab Rocky Linux 8 0.996-1.module+el8.3.0+242+87d3366a.9
  • mysql Rocky Linux 8 8.0.21-1.module+el8.3.0+242+87d3366a
  • mecab-ipadic Rocky Linux 8 2.7.0.20070801-16.module+el8.3.0+242+87d3366a

rocky linux advisories RLSA-2020:3732

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-2020-14678 updated cvss 7.2

mysql: Server: Security: Privileges unspecified vulnerability (CPU Jul 2020)

  • Red Hat Enterprise Linux AppStream (v. 8) mysql 8.0.21-1.module+el8.2.0+7855+47abd494, mecab 0.996-1.module+el8.0.0+3898+e09bb8de.9, mysql-libs 8.0.21-1.module+el8.2.0+7855+47abd494, mysql-test 8.0.21-1.module+el8.2.0+7855+47abd494, mysql-common 8.0.21-1.module+el8.2.0+7855+47abd494, mysql-errmsg 8.0.21-1.module+el8.2.0+7855+47abd494, +3 more
    fixed: vendor fix RHSA-2020:3732
  • Red Hat Enterprise Linux AppStream E4S (v. 8.0) mysql 8.0.21-1.module+el8.0.0+7853+3a2b0b25, mecab 0.996-1.module+el8.0.0+3898+e09bb8de.9, mysql-libs 8.0.21-1.module+el8.0.0+7853+3a2b0b25, mysql-test 8.0.21-1.module+el8.0.0+7853+3a2b0b25, mysql-common 8.0.21-1.module+el8.0.0+7853+3a2b0b25, mysql-errmsg 8.0.21-1.module+el8.0.0+7853+3a2b0b25, +3 more
    fixed: vendor fix RHSA-2020:3755
  • Red Hat Enterprise Linux AppStream EUS (v. 8.1) mysql 8.0.21-1.module+el8.1.0+7854+62e1520f, mecab 0.996-1.module+el8.0.0+3898+e09bb8de.9, mysql-libs 8.0.21-1.module+el8.1.0+7854+62e1520f, mysql-test 8.0.21-1.module+el8.1.0+7854+62e1520f, mysql-common 8.0.21-1.module+el8.1.0+7854+62e1520f, mysql-errmsg 8.0.21-1.module+el8.1.0+7854+62e1520f, +3 more
    fixed: vendor fix RHSA-2020:3757
  • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-mysql80-mysql 8.0.21-1.el7, rh-mysql80-mysql-test 8.0.21-1.el7, rh-mysql80-mysql-common 8.0.21-1.el7, rh-mysql80-mysql-config 8.0.21-1.el7, rh-mysql80-mysql-errmsg 8.0.21-1.el7, rh-mysql80-mysql-server 8.0.21-1.el7, +3 more Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) rh-mysql80-mysql 8.0.21-1.el7, rh-mysql80-mysql-test 8.0.21-1.el7, rh-mysql80-mysql-common 8.0.21-1.el7, rh-mysql80-mysql-config 8.0.21-1.el7, rh-mysql80-mysql-errmsg 8.0.21-1.el7, rh-mysql80-mysql-server 8.0.21-1.el7, +3 more Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) rh-mysql80-mysql 8.0.21-1.el7, rh-mysql80-mysql-test 8.0.21-1.el7, rh-mysql80-mysql-common 8.0.21-1.el7, rh-mysql80-mysql-config 8.0.21-1.el7, rh-mysql80-mysql-errmsg 8.0.21-1.el7, rh-mysql80-mysql-server 8.0.21-1.el7, +3 more Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-mysql80-mysql 8.0.21-1.el7, rh-mysql80-mysql-test 8.0.21-1.el7, rh-mysql80-mysql-common 8.0.21-1.el7, rh-mysql80-mysql-config 8.0.21-1.el7, rh-mysql80-mysql-errmsg 8.0.21-1.el7, rh-mysql80-mysql-server 8.0.21-1.el7, +3 more
    fixed: vendor fix RHSA-2020:3518
  • Red Hat Enterprise Linux 5 mysql55-mysql Red Hat Enterprise Linux 6 mysql, mysql-libs, mysql-test, mysql-bench, mysql-server, mysql-embedded Red Hat Enterprise Linux 7 mariadb, mariadb-libs, mariadb-test, mariadb-bench, mariadb-server, mariadb-embedded Red Hat Enterprise Linux 8 Judy, galera, mariadb, mariadb-pam, mariadb-test, mariadb-backup, +8 more Red Hat OpenStack Platform 10 (Newton) mariadb-galera, mariadb-galera-common, mariadb-galera-server Red Hat OpenStack Platform 13 (Queens) mariadb, mariadb-libs, mariadb-test, mariadb-common, mariadb-config, mariadb-errmsg, +3 more
    +1 more products
    Red Hat Software Collections rh-mariadb102-mariadb, rh-mariadb103-mariadb, rh-mariadb102-mariadb-test, rh-mariadb103-mariadb-test, rh-mariadb102-mariadb-bench, rh-mariadb102-mariadb-backup, +31 more
    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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

1.90% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

  • Oracle Corporation MySQL Server

Classification

Technology feeds

References

Sources

Fencer Vulns 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.