CVE-2026-21975

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{}

{"analysis": {"en": {"generated_at": "2026-04-18T15:35:42.339465+00:00", "value": {"mitigation_remediation": ["Apply the latest Oracle Database Server patch that includes the Java VM fix, as released in the CPU January\u202f2026 advisory.", "If patching immediately is not feasible, disable or remove the Java VM feature from the database startup configuration to prevent accidental crashes.", "Continuously monitor database logs for Java VM crash events and configure alerts for abnormal terminations to ensure rapid incident response."], "summary": {"action": "Patch Immediately", "impact": "Denial of Service via Java VM crash"}, "threat_synthesis": {"affected_systems": "Affected products are Oracle Database Server with Java VM for versions 19.3 through 19.29 and 21.3 through 21.20. These versions run the vulnerable Java VM component.", "description_and_impact": "The vulnerability allows a high\u2011privileged authenticated user, who can reach the database over Oracle Net, to cause the Java VM component of Oracle Database Server to crash or hang. The effect is an availability loss; confidentiality or integrity are not affected. Successful exploitation also requires a separate attacker\u2011controlled user to interact with the system, making the attack more complex.", "risk_and_exploitability": "The CVSS 3.1 base score of 4.5 indicates moderate severity for availability. The EPSS score of under 1% suggests low overall exploitation probability, and the vulnerability is not listed in the CISA KEV catalog. Exploitation requires network access via Oracle Net, an authenticated user with high privileges, and a separate human interaction from another person, which reduces the likelihood of automated, widespread attacks."}}}}, "created": "2026-04-18T15:45:04.271452+00:00", "title": "Java VM Crash Vulnerability in Oracle Database Server", "updated": "2026-04-18T15:45:04.271462+00:00", "vendors": []}