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CVE-2026-21949

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

Описание

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 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 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 10mysql8.4Not affected
Red Hat Enterprise Linux 6mysqlNot affected
Red Hat Enterprise Linux 8mysql:8.0/mysqlNot affected
Red Hat Enterprise Linux 8mysql:8.4/mysqlNot affected
Red Hat Enterprise Linux 9mysqlNot affected
Red Hat Enterprise Linux 9mysql:8.4/mysqlNot affected

Показывать по

Дополнительная информация

Статус:

Moderate
https://bugzilla.redhat.com/show_bug.cgi?id=2431434mysql: Optimizer unspecified vulnerability (CPU Jan 2026)

EPSS

Процентиль: 14%
0.00046
Низкий

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 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 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 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

EPSS

Процентиль: 14%
0.00046
Низкий

6.5 Medium

CVSS3

Уязвимость CVE-2026-21949