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CVE-2026-21975

Severity CVSS v4.0:
Pending analysis
Type:
CWE-404 Improper Resource Shutdown or Release
Publication date:
20/01/2026
Last modified:
29/01/2026

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).

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 4.50 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
4.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:oracle:java_virtual_machine:*:*:*:*:*:*:*:* 19.3 (including) 19.29 (including)
cpe:2.3:a:oracle:java_virtual_machine:*:*:*:*:*:*:*:* 21.3 (including) 21.20 (including)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools