Is CVE-2025-21583 actively exploited?

No active exploitation of CVE-2025-21583 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2025-21583 be exploited remotely?

Yes. CVE-2025-21583 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2025-21583?

CVE-2025-21583 has a CVSS score of 4.9 (MEDIUM).

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MEDIUM

CVE-2025-21583

CWE-732Published: April 15, 2025· Updated: Jun 17, 2026

4.9

CVSS v3.1

Official Description

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DDL). Supported versions that are affected are 8.4.0 and 9.0.0. Easily exploitable vulnerability allows high 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 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

NVD Source

Technical Analysis

CVE-2025-21583 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 4.9.