CVE-2026-21975

Medium

Description

Vulnerability in the Java VM component of Oracle Database Server. Supported versions that are affected are 19.3-19.29 and 21.3-21.20. Easily exploitable vulnerability allows high privileged attacker having Authenticated User privilege with network access via Oracle Net to compromise Java VM. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Java VM. CVSS 3.1 Base Score 4.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H).

SeverityMedium
CVSS4.5
Exploit probability—
ProductOracle Java Virtual Machine
PublishedJan 20, 2026
First seenJan 20, 2026
Weakness typeCWE-404CWE-404

How to fix

Affected products

ProductAffected versionsFixed in
oracle java_virtual_machine19.3 ≤ v ≤ 19.29, 21.3 ≤ v ≤ 21.20—

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