CVE-2020-14789

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: FTS). Supported versions that are affected are 5.7.31 and prior and 8.0.21 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 unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

Published: 2020-10-21 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-14789 is rated Moderate Risk (49/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.62%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2020-14789

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-23 2.47% 2.62% +0.15%
2 2026-06-15 0.61% 2.47% +1.86%
3 2026-06-02 — 0.61% —

Full EPSS history (25 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-14789

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.9 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.2 3.6 [email protected]
4.0 2.0 MEDIUM
AV:N/AC:L/Au:S/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.0 2.9 [email protected]

Weakness enumeration for CVE-2020-14789

OS Trackers for CVE-2020-14789

vendor priority summary link
alpine medium CVE-2020-14789: 1 source package rows (mariadb); 10 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 10, open 0. https://security.alpinelinux.org/vuln/CVE-2020-14789
debian not yet assigned CVE-2020-14789 not yet assigned priority: Debian including 2 source packages (mariadb-10.5, mysql-8.0), 2 status rows across 2 suites (bullseye, sid): resolved 2. https://security-tracker.debian.org/tracker/CVE-2020-14789
gentoo normal CVE-2020-14789: 1 GLSA(s) (202105-27), 2 atom(s) (dev-db/mysql, dev-db/mysql-connector-c); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2020-14789
redhat medium — https://access.redhat.com/security/cve/CVE-2020-14789
suse medium CVE-2020-14789 severity moderate: SUSE including 158 source package names (10.6-12.1:libmariadb3-3.1.11-3.22.2, 10.6-14.4:libmariadb3-3.1.11-3.22.2, …), 369 product×package rows across 49 product lines (Container suse/rmt-mariadb, Container suse/rmt-mariadb-client, … (49 product lines)): Fixed 323, Will Not Fix 34, Known Not Affected 12. https://www.suse.com/security/cve/CVE-2020-14789/
ubuntu medium CVE-2020-14789 medium priority: Ubuntu including 11 source packages (mariadb-10.0, mariadb-10.1, …), 177 status rows across 17 suites (bionic, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, vivid, xenial): DNE 147, needs-triage 14, released 14, ignored 2. https://ubuntu.com/security/CVE-2020-14789

Affected software / configurations for CVE-2020-14789

Vendor Product Version Raw CPE
oracle mysql >= 5.7.0, <= 5.7.31 cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*
oracle mysql >= 8.0.0, <= 8.0.21 cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*
netapp active_iq_unified_manager >= 7.3 cpe:2.3:a:netapp:active_iq_unified_manager:*:*:*:*:*:windows:*:*
netapp active_iq_unified_manager >= 9.5 cpe:2.3:a:netapp:active_iq_unified_manager:*:*:*:*:*:vmware_vsphere:*:*
netapp oncommand_insight — cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:*
netapp oncommand_workflow_automation — cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:*
netapp snapcenter_server — cpe:2.3:a:netapp:snapcenter_server:-:*:*:*:*:*:*:*
fedoraproject fedora 31 cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
fedoraproject fedora 32 cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
fedoraproject fedora 33 cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
mariadb mariadb >= 10.2.0, < 10.2.35 cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*
mariadb mariadb >= 10.3.0, < 10.3.26 cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*
mariadb mariadb >= 10.4.0, < 10.4.16 cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*
mariadb mariadb >= 10.5.0, < 10.5.7 cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*

References for CVE-2020-14789

URL Tags
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GZU3PA5XJXNQ4C4F6435ARM6WKM3OZYR/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JBZZ3XIRPFPAWBZLYBN777ANXSFXAPPB/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O7RVY2Z7HYQHFJXBGARXUAGKUDAWYPP4/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OPW5YMZR5C7D7NBZQSTDOB3XAI5QP32Y/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X4X2BMF3EILMTXGOZDTPYS3KT5VWLA2P/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZVS6KNVBZCLZBKNJ5JA2PGAG3NTOJVH6/
https://security.gentoo.org/glsa/202105-27 Third Party Advisory
https://security.netapp.com/advisory/ntap-20201023-0003/ Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2020.html Patch Vendor Advisory
cvelogic Threat Intelligence