CVE-2026-21975
MediumVulnerability 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).
CVSS Metrics
Common Vulnerability Scoring System
Vector String:
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H
Known Affected Software
6 configuration(s) from 1 vendor(s)
cpe:2.3:a:oracle:java_virtual_machine:19.3:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_virtual_machine:19.26:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_virtual_machine:21.17:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_virtual_machine:19.25:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_virtual_machine:21.3:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_virtual_machine:21.16:*:*:*:*:*:*:*
CVE-2026-21975
CVE-2026-21975
CPUJAN2026
Oracle Critical Patch Update Advisory - January 2026
Severity Details
Weakness Type (CWE)
Improper Resource Shutdown or Release
- Description
- The product does not release or incorrectly releases a resource before it is made available for re-use.
- Exploit Likelihood
- Medium
- Typical Severity
- Medium
- Abstraction Level
- Class
Key Information
- Published Date
- January 20, 2026
