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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[8.0.0,8.0.45]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[8.4.0,8.4.8]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[9.0.0,9.6.0]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "MySQL Server", "source": "cna", "vendor": "Oracle Corporation"}, "product": "mysql_server", "vendor": "oracle"}], "analysis": {"en": {"generated_at": "2026-04-22T05:19:31.638629+00:00", "value": {"mitigation_remediation": ["Verify the MySQL Server version; if it falls within any affected range, schedule an upgrade to the latest patched release.", "Apply the Oracle MySQL Server security update released for this vulnerability as soon as it becomes available.", "Restrict external access to the MySQL ports and use firewall rules to block vulnerable protocols until the patch is applied."], "summary": {"action": "Apply Patch", "impact": "Denial of Service"}, "threat_synthesis": {"affected_systems": "Oracle MySQL Server versions 8.0.0 through 8.0.45, 8.4.0 through 8.4.8, and 9.0.0 through 9.6.0 are affected. Any deployment of these releases that is exposed to the network is a potential target. The flaw is specific to the InnoDB component within MySQL Server.", "description_and_impact": "The vulnerability resides in Oracle MySQL Server\u2019s InnoDB component. A high\u2011privileged attacker with network access through any supported protocol can force the server to crash or hang repeatedly, leading to a complete denial of service. The impact is limited to availability; confidentiality and integrity are not affected.", "risk_and_exploitability": "The CVSS base score of 4.9 classifies the flaw as moderate severity. Since the attack vector requires network access and high privileges, the risk is mitigated by proper access controls. No publicly available exploit is listed, EPSS data is unavailable, and the vulnerability is not in the CISA KEV catalog. Nonetheless, the ability to repeatedly crash the service poses a serious operational risk for database infrastructures that cannot tolerate downtime."}}}}, "created": "2026-04-22T01:45:05.391949+00:00", "title": "Oracle MySQL Server Vulnerability Allows High\u2011Privileged Attacker to Induce Denial of Service", "updated": "2026-04-22T05:30:09.550298+00:00", "vendors": ["oracle", "oracle$PRODUCT$mysql_server"], "weaknesses": ["CWE-400"]}