CVE-2025-21529

Summary

CVE-2025-21529 is a vulnerability affecting MySQL Server versions 8.0.40 and prior, 8.4.3 and prior, and 9.1.0 and prior (Oracle MySQL, Server: Information Schema component). This easily exploitable issue enables high-privileged attackers with network access, through multiple protocols, to cause a denial-of-service (DoS) by inducing a hang or frequent crashes in the MySQL Server. The resulting impact on availability is rated as high (CVSS Base Score: 4.9). Attackers can potentially exploit this vulnerability without user interaction and without needing to authenticate, making it a significant security concern.

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