PT-2026-3700

CVE-2026-21950

Published

2026-01-20

Updated

2026-01-29

Description by

CVSS 2.0

6.8

Medium

MetricsAV:N/AC:L/Au:S/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Oracle MySQL versions 9.0.0 through 9.5.0

Description A flaw exists in the Oracle MySQL Server component, specifically within the Optimizer. A low-privileged attacker with network access through multiple protocols can exploit this issue to cause a denial-of-service condition, leading to a hang or frequent crashes of the MySQL Server.

Recommendations Update to a version later than 9.5.0.

Exploitability

Exploit

Fix

Impacts

Researchers

Jingzhou Fu

Zhiyong Wu

Vendors

Affected products

Weakness enumeration

CWE-400: Uncontrolled Resource Consumption