CVE-2026-21950 PUBLISHED CVSS 6.5 MEDIUM

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).

EPSS 0.05% · 14.0th percentile

Risk Scores

CVSS v3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.05%
14.0th percentile

Affected Products

VendorProductVersions
Oracle CorporationMySQL Server9.0.0
oraclemysql_server9.0.0, 9.0.0

Timeline

References

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