Skip to content
Fencer Intel
medium 4.9

CVE-2021-2194 json

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

published 5y ago modified 2mo ago also BIT-mariadb-2021-2194 , BIT-mariadb-min-2021-2194 , BIT-mysql-client-2021-2194 , EUVD-2021-16653

cvss
4.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are 5.7.33 and prior and 8.0.23 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).

Patch / fix

  • bitnami mariadb 10.2.35, 10.3.26, 10.4.16, 10.5.7
  • bitnami mariadb-min 10.2.35, 10.3.26, 10.4.16, 10.5.7
  • bitnami mysql-client 10.2.35, 10.3.26, 10.4.16, 10.5.7
  • mariadb mariadb 10.2.35, 10.3.26, 10.4.16, 10.5.7
  • mariadb-10.5 Debian 11 1:10.5.8-1

debian advisories DEBIAN-CVE-2021-2194

  • mysql-5.7 Ubuntu 18.04 LTS 5.7.34-0ubuntu0.18.04.1
  • mysql-8.0 Ubuntu 20.04 LTS 8.0.25-0ubuntu0.20.04.1
  • mysql-5.7 Ubuntu Pro 16.04 LTS 5.7.35-0ubuntu0.16.04.1+esm1

ubuntu advisories UBUNTU-CVE-2021-2194

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 0.996-1.module+el8.0.0+3898+e09bb8de.9
  • mysql RHEL 8 8.0.26-1.module+el8.4.0+12359+b8928c02
  • mysql-libs RHEL 8 8.0.26-1.module+el8.4.0+12359+b8928c02
  • mysql-test RHEL 8 8.0.26-1.module+el8.4.0+12359+b8928c02
  • mecab-ipadic RHEL 8 2.7.0.20070801-16.module+el8.0.0+3898+e09bb8de
  • mysql-common RHEL 8 8.0.26-1.module+el8.4.0+12359+b8928c02
  • mysql-errmsg RHEL 8 8.0.26-1.module+el8.4.0+12359+b8928c02
  • mysql-server RHEL 8 8.0.26-1.module+el8.4.0+12359+b8928c02

red hat advisories RHSA-2021:3590RHSA-2021:3811RHSA-2020:5654RHSA-2020:5663RHSA-2020:5665RHSA-2020:5246

  • 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
  • mysql AlmaLinux 8 8.0.26-1.module_el8.4.0+2532+b8928c02
  • mysql AlmaLinux 8 8.0.26-1.module_el8.5.0+33+8bc5f36a
  • mysql-libs AlmaLinux 8 8.0.26-1.module_el8.4.0+2532+b8928c02
  • mysql-libs AlmaLinux 8 8.0.26-1.module_el8.5.0+33+8bc5f36a
  • mysql-test AlmaLinux 8 8.0.26-1.module_el8.4.0+2532+b8928c02
  • mysql-test AlmaLinux 8 8.0.26-1.module_el8.5.0+33+8bc5f36a

almalinux advisories ALSA-2021:3590ALSA-2020:5500

  • mecab Rocky Linux 8 0.996-1.module+el8.3.0+242+87d3366a.9
  • mysql Rocky Linux 8 8.0.26-1.module+el8.4.0+652+6de068a7
  • mecab-ipadic Rocky Linux 8 2.7.0.20070801-16.module+el8.3.0+242+87d3366a
  • Judy Rocky Linux 8 1.0.5-18.module+el8.4.0+427+adf35707

rocky linux advisories RLSA-2021:3590RLSA-2020:5500

Is CVE-2021-2194 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

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-2021-2194 updated cvss 4.9

mysql: InnoDB unspecified vulnerability (CPU Apr 2021)

  • Red Hat Enterprise Linux 7 mariadb, mariadb-libs, mariadb-test, mariadb-bench, mariadb-server, mariadb-embedded Red Hat OpenStack Platform 10 (Newton) mariadb-galera, mariadb-galera-common, mariadb-galera-server
    affected: no fix planned “Out of support scope”
  • Red Hat OpenStack Platform 13 (Queens) mariadb, mariadb-libs, mariadb-test, mariadb-common, mariadb-config, mariadb-errmsg, +3 more
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux AppStream (v. 8) Judy 1.0.5-18.module+el8+2765+cfa4f87b, mecab 0.996-1.module+el8.0.0+3898+e09bb8de.9, mysql 8.0.26-1.module+el8.4.0+12359+b8928c02, galera 25.3.31-1.module+el8.3.0+8843+3f4e42f6, mariadb 10.3.27-3.module+el8.3.0+8972+5e3224e9, mysql-libs 8.0.26-1.module+el8.4.0+12359+b8928c02, +16 more
    fixed: vendor fix RHSA-2020:5500
  • Red Hat Enterprise Linux AppStream E4S (v. 8.0) Judy 1.0.5-18.module+el8+2765+cfa4f87b, galera 25.3.31-1.module+el8.0.0+9239+73817dd5, mariadb 10.3.27-3.module+el8.0.0+9160+9822c5c7, mariadb-test 10.3.27-3.module+el8.0.0+9160+9822c5c7, mariadb-backup 10.3.27-3.module+el8.0.0+9160+9822c5c7, mariadb-common 10.3.27-3.module+el8.0.0+9160+9822c5c7, +7 more
    fixed: vendor fix RHSA-2020:5663
  • Red Hat Enterprise Linux AppStream EUS (v. 8.1) Judy 1.0.5-18.module+el8+2765+cfa4f87b, galera 25.3.31-1.module+el8.1.0+8860+1543d51b, mariadb 10.3.27-3.module+el8.1.0+9159+f0191ef0, mariadb-test 10.3.27-3.module+el8.1.0+9159+f0191ef0, mariadb-backup 10.3.27-3.module+el8.1.0+9159+f0191ef0, mariadb-common 10.3.27-3.module+el8.1.0+9159+f0191ef0, +7 more
    fixed: vendor fix RHSA-2020:5665
  • Red Hat Enterprise Linux AppStream EUS (v. 8.2) Judy 1.0.5-18.module+el8+2765+cfa4f87b, galera 25.3.31-1.module+el8.2.0+8857+d5b3039b, mariadb 10.3.27-3.module+el8.2.0+9158+b3fb2ef4, mariadb-test 10.3.27-3.module+el8.2.0+9158+b3fb2ef4, mariadb-backup 10.3.27-3.module+el8.2.0+9158+b3fb2ef4, mariadb-common 10.3.27-3.module+el8.2.0+9158+b3fb2ef4, +7 more
    fixed: vendor fix RHSA-2020:5654
  • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-mysql80-mysql 8.0.26-1.el7, rh-mariadb103-galera 25.3.31-1.el7, rh-mysql80-mysql-test 8.0.26-1.el7, rh-mariadb103-mariadb 10.3.27-1.el7, rh-mysql80-mysql-common 8.0.26-1.el7, rh-mysql80-mysql-config 8.0.26-1.el7, +22 more Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) rh-mariadb103-galera 25.3.31-1.el7, rh-mariadb103-mariadb 10.3.27-1.el7, rh-mariadb103-mariadb-test 10.3.27-1.el7, rh-mariadb103-mariadb-backup 10.3.27-1.el7, rh-mariadb103-mariadb-common 10.3.27-1.el7, rh-mariadb103-mariadb-config 10.3.27-1.el7, +13 more Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) rh-mysql80-mysql 8.0.26-1.el7, rh-mariadb103-galera 25.3.31-1.el7, rh-mysql80-mysql-test 8.0.26-1.el7, rh-mariadb103-mariadb 10.3.27-1.el7, rh-mysql80-mysql-common 8.0.26-1.el7, rh-mysql80-mysql-config 8.0.26-1.el7, +22 more Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-mysql80-mysql 8.0.26-1.el7, rh-mariadb103-galera 25.3.31-1.el7, rh-mysql80-mysql-test 8.0.26-1.el7, rh-mariadb103-mariadb 10.3.27-1.el7, rh-mysql80-mysql-common 8.0.26-1.el7, rh-mysql80-mysql-config 8.0.26-1.el7, +22 more
    fixed: vendor fix RHSA-2020:5246
  • Red Hat Enterprise Linux 6 mysql, mysql-libs, mysql-test, mysql-bench, mysql-server, mysql-embedded Red Hat Enterprise Linux 8 Judy, galera, mariadb, mariadb-pam, mariadb-test, mariadb-backup, +8 more Red Hat Software Collections rh-mariadb105-mariadb, rh-mariadb105-mariadb-pam, rh-mariadb105-mariadb-libs, rh-mariadb105-mariadb-test, rh-mariadb105-mariadb-backup, rh-mariadb105-mariadb-common, +14 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 ICSA-26-027-02 updated cvss 4.9

Festo Didactic SE MES PC

  • Festo Didactic SE MES PC shipped_with_Windows_10
    affected: vendor fix

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2y ago

Exploit prediction

2.31% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:N/I:N/A:P
OSV 3.1 4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
bitnami mariadb
>=10.2.0, <10.2.35
>=10.3.0, <10.3.26
>=10.4.0, <10.4.16
>=10.5.0, <10.5.7
10.2.35
10.3.26
10.4.16
10.5.7
bitnami mariadb-min
>=10.2.0, <10.2.35
>=10.3.0, <10.3.26
>=10.4.0, <10.4.16
>=10.5.0, <10.5.7
10.2.35
10.3.26
10.4.16
10.5.7
bitnami mysql-client
>=10.2.0, <10.2.35
>=10.3.0, <10.3.26
>=10.4.0, <10.4.16
>=10.5.0, <10.5.7
10.2.35
10.3.26
10.4.16
10.5.7

Affected products

  • Oracle Corporation MySQL Server

Classification

Technology feeds

References

Sources

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.