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CVE-2020-14765

24
FAUCET Score

CVE-2020-14765 is a denial-of-service vulnerability affecting Oracle MySQL Server versions 5.6.49 and prior, 5.7.31 and prior, and 8.0.21 and prior, specifically within the Full-Text Search (FTS) component. This easily exploitable flaw allows a low-privileged attacker with network access to cause a complete server crash or hang. Rated with a CVSS 3.1 Base Score of 6.5 (Medium), its primary impact is high availability loss. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.6.0, <= 5.6.49CPE matchmatch criteria
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*
>= 5.7.0, <= 5.7.31CPE matchmatch criteria
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*
>= 8.0.0, <= 8.0.21CPE matchmatch criteria
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*
>= 7.3CPE matchmatch criteria
cpe:2.3:a:netapp:active_iq_unified_manager:*:*:*:*:*:windows:*:*
>= 9.5CPE matchmatch criteria
cpe:2.3:a:netapp:active_iq_unified_manager:*:*:*:*:*:vmware_vsphere:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.05%
Probability of exploitation in next 30 days
EPSS Percentile
86.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0305 is in the 95th percentile among its peer group of 21,974 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 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 (18)

microsoftpatch availablevia msrc
Product: cm1 mysql 8.0.26-1 on CBL Mariner 1.0Fixed in: 8.0.26-1
microsoftpatch availablevia msrc
Product: 19031-16820Fixed in: 8.0.26-1
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: mysql:8.0-8040020210824134700.522a0ee4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.0 Update Services for SAP SolutionsFixed in: mariadb:10.3-8000020201221114409.f8e95b4e
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.1 Extended Update SupportFixed in: mariadb:10.3-8010020201214133427.c27ad7f8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Extended Update SupportFixed in: mariadb:10.3-8020020201214133105.4cda2c84
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-mariadb103-galera-0:25.3.31-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-mariadb103-mariadb-3:10.3.27-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSFixed in: rh-mariadb103-galera-0:25.3.31-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSFixed in: rh-mariadb103-mariadb-3:10.3.27-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUSFixed in: rh-mariadb103-galera-0:25.3.31-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUSFixed in: rh-mariadb103-mariadb-3:10.3.27-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUSFixed in: rh-mysql80-mysql-0:8.0.26-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-mysql80-mysql-0:8.0.26-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: mariadb:10.3-8030020201203011231.229f0a1c
View patch
oraclevendor investigatingvia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: mariadb
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 13 (Queens)Fixed in: mariadb

Vendor Advisories (2)

redhatCVE-2020-14765Moderate

mysql: Server: FTS unspecified vulnerability (CPU Oct 2020)

Oct 20, 2020
microsoft2020-Oct/CVE-2020-14765Moderate

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: FTS). Supported versions that are affected are 5.6.49 and prior 5.7.31 and prior and 8.0.21 and prior. Easily exploitable vulnerability allows low 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 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

Oct 13, 2020

References

lists.debian.org / debian-lts-announce/2021/01/msg00027.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/GZU3PA5XJXNQ4C4F6435ARM6WKM3OZYR
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/JBZZ3XIRPFPAWBZLYBN777ANXSFXAPPB
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/O7RVY2Z7HYQHFJXBGARXUAGKUDAWYPP4
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/OPW5YMZR5C7D7NBZQSTDOB3XAI5QP32Y
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/X4X2BMF3EILMTXGOZDTPYS3KT5VWLA2P
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/ZVS6KNVBZCLZBKNJ5JA2PGAG3NTOJVH6
security.gentoo.org / glsa/202105-27
Third Party Advisory
security.netapp.com / advisory/ntap-20201023-0003
Third Party Advisory
oracle.com / security-alerts/cpuoct2020.html
Vendor Advisory