Vulnerability Details CVE-2026-46863
Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Connection Handling). Supported versions that are affected are MySQL Server: 8.4.0-8.4.9, 9.0.0-9.7.0; MySQL Cluster: 8.0.11-8.0.46, 8.4.0-8.4.9 and 9.0.0-9.7.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 37.0%
CVSS Severity
CVSS v3 Score 7.5
Products affected by CVE-2026-46863
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cpe:2.3:a:oracle:mysql_cluster:8.0.21
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cpe:2.3:a:oracle:mysql_cluster:8.0.23
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cpe:2.3:a:oracle:mysql_cluster:8.0.25
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cpe:2.3:a:oracle:mysql_cluster:8.0.26
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cpe:2.3:a:oracle:mysql_cluster:8.0.27
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cpe:2.3:a:oracle:mysql_cluster:8.0.29
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cpe:2.3:a:oracle:mysql_cluster:8.0.31
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cpe:2.3:a:oracle:mysql_cluster:8.0.37
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cpe:2.3:a:oracle:mysql_cluster:8.0.40
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cpe:2.3:a:oracle:mysql_cluster:8.0.41
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cpe:2.3:a:oracle:mysql_cluster:8.0.42
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cpe:2.3:a:oracle:mysql_cluster:8.0.43
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cpe:2.3:a:oracle:mysql_cluster:8.0.44
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cpe:2.3:a:oracle:mysql_cluster:8.0.45
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cpe:2.3:a:oracle:mysql_cluster:8.0.46
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cpe:2.3:a:oracle:mysql_cluster:8.4.0
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cpe:2.3:a:oracle:mysql_cluster:8.4.3
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cpe:2.3:a:oracle:mysql_cluster:8.4.4
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cpe:2.3:a:oracle:mysql_cluster:8.4.5
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cpe:2.3:a:oracle:mysql_cluster:8.4.6
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cpe:2.3:a:oracle:mysql_cluster:8.4.7
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cpe:2.3:a:oracle:mysql_cluster:8.4.8
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cpe:2.3:a:oracle:mysql_cluster:8.4.9
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cpe:2.3:a:oracle:mysql_cluster:9.0.0
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cpe:2.3:a:oracle:mysql_cluster:9.1.0
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cpe:2.3:a:oracle:mysql_cluster:9.2.0
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cpe:2.3:a:oracle:mysql_cluster:9.3.0
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cpe:2.3:a:oracle:mysql_cluster:9.5.0
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cpe:2.3:a:oracle:mysql_cluster:9.7.0
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cpe:2.3:a:oracle:mysql_server:8.4.0
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cpe:2.3:a:oracle:mysql_server:8.4.1
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cpe:2.3:a:oracle:mysql_server:8.4.2
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cpe:2.3:a:oracle:mysql_server:8.4.3
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cpe:2.3:a:oracle:mysql_server:8.4.4
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cpe:2.3:a:oracle:mysql_server:8.4.5
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cpe:2.3:a:oracle:mysql_server:8.4.6
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cpe:2.3:a:oracle:mysql_server:8.4.7
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cpe:2.3:a:oracle:mysql_server:8.4.8
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cpe:2.3:a:oracle:mysql_server:8.4.9
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cpe:2.3:a:oracle:mysql_server:9.0.0
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cpe:2.3:a:oracle:mysql_server:9.0.1
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cpe:2.3:a:oracle:mysql_server:9.1.0
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cpe:2.3:a:oracle:mysql_server:9.2.0
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cpe:2.3:a:oracle:mysql_server:9.4.0
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cpe:2.3:a:oracle:mysql_server:9.5.0
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cpe:2.3:a:oracle:mysql_server:9.6.0
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cpe:2.3:a:oracle:mysql_server:9.7.0