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CVE-2026-21968

Опубликовано: 20 янв. 2026
Источник: redhat
CVSS3: 6.5

Описание

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).

Oracle CPU describes the issue as following: 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.

Отчет

Red Hat Product Security rates the severity of this flaw as determined by the Oracle MySQL Critical Patch Update.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 6mysqlNot affected
Red Hat Enterprise Linux 8mariadb:10.11/mariadbAffected
Red Hat Enterprise Linux 8mysql:8.0/mysqlAffected
Red Hat Enterprise Linux 8mysql:8.4/mysqlAffected
Red Hat Enterprise Linux 9mysql:8.4/mysqlAffected
Red Hat Enterprise Linux 10mariadb10.11FixedRHSA-2026:013606.01.2026
Red Hat Enterprise Linux 10mysql8.4FixedRHSA-2026:416210.03.2026
Red Hat Enterprise Linux 10.0 Extended Update Supportmariadb10.11FixedRHSA-2026:037608.01.2026
Red Hat Enterprise Linux 9mariadbFixedRHSA-2026:024707.01.2026
Red Hat Enterprise Linux 9mysqlFixedRHSA-2026:482817.03.2026

Показывать по

Дополнительная информация

Статус:

Moderate
https://bugzilla.redhat.com/show_bug.cgi?id=2431409mysql: Optimizer unspecified vulnerability (CPU Jan 2026)

6.5 Medium

CVSS3

Связанные уязвимости

CVSS3: 6.5
ubuntu
2 месяца назад

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).

CVSS3: 6.5
nvd
2 месяца назад

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).

CVSS3: 6.5
debian
2 месяца назад

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

CVSS3: 6.5
github
2 месяца назад

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).

CVSS3: 6.5
fstec
2 месяца назад

Уязвимость компонента Server: Optimizer системы управления базами данных Oracle MySQL Server, позволяющая нарушителю вызвать отказ в обслуживании

6.5 Medium

CVSS3