CVE-2026-21968

EUVD-2026-3544
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer).  Supported versions that are affected are 8.0.0-8.0.44, 8.4.0-8.4.7 and  9.0.0-9.5.0. 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).
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
oracleCNA
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 17%
Affected Products (NVD)
VendorProductVersion
oraclemysql_server
8.0.0 ≤
𝑥
≤ 8.0.44
oraclemysql_server
8.4.0 ≤
𝑥
≤ 8.4.7
oraclemysql_server
9.0.0 ≤
𝑥
≤ 9.5.0
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
oraclemysql
8.0.0 ≤
𝑥
≤ 8.0.44
CNA
oraclemysql
8.4.0 ≤
𝑥
≤ 8.4.7
CNA
oraclemysql
9.0.0 ≤
𝑥
≤ 9.5.0
CNA
Debian logo
Debian Releases
Debian Product
Codename
mariadb
bookworm
1:10.11.18-0+deb12u1
fixed
forky
1:11.8.8-1
fixed
sid
1:11.8.8-1
fixed
trixie
1:11.8.6-0+deb13u1
fixed
mysql-8.0
sid
8.0.46-1
fixed
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
mysql
RHEL 9
0:8.0.45-1.el9_7
fixed
mysql-common
RHEL 9
0:8.0.45-1.el9_7
fixed
mysql-devel
RHEL 9
0:8.0.45-1.el9_7
fixed
mysql-errmsg
RHEL 9
0:8.0.45-1.el9_7
fixed
mysql-libs
RHEL 9
0:8.0.45-1.el9_7
fixed
mysql-server
RHEL 9
0:8.0.45-1.el9_7
fixed
mysql-test
RHEL 9
0:8.0.45-1.el9_7
fixed
Amazon Linux logo
Amazon Linux Releases
Amazon Package
Release
mariadb1011
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-backup
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-backup-debuginfo
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-client-utils
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-common
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-connect-engine
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-connect-engine-debuginfo
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-cracklib-password-check
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-cracklib-password-check-debuginfo
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-debuginfo
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-debugsource
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-devel
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-errmsg
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-gssapi-server
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-gssapi-server-debuginfo
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-oqgraph-engine
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-oqgraph-engine-debuginfo
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-pam
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-pam-debuginfo
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-rocksdb-engine
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-rocksdb-engine-debuginfo
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-server
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-server-debuginfo
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-server-utils
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-server-utils-debuginfo
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-sphinx-engine
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-sphinx-engine-debuginfo
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-test
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
mariadb1011-test-debuginfo
Amazon Linux 2023
3:10.11.15-1.amzn2023.0.1
fixed
Azure Linux logo
Azure Linux Releases
Azure Package
Release
mysql
Azure Linux 3.0
0:8.0.45-1.azl3
fixed
CBL-Mariner 2.0
0:8.0.45-1.cm2
fixed