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CVE-2025-21519 is a vulnerability in Oracle MySQL Server in the Server: Security: Privileges component. Affected versions include 8.0.40 and earlier, 8.4.3 and earlier, and 9.1.0 and earlier. The flaw is described as difficult to exploit and is reachable over the network through multiple protocols by a high-privileged attacker. Successful exploitation can compromise MySQL Server availability by causing the server to hang or to crash repeatedly, resulting in a complete denial of service. No specific vulnerable function or root-cause detail is currently available from the provided information.
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Cross-references every affected SKU, including bundled OEM variants.
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