Java VM Vulnerability in Oracle Database Server
CVE-2026-21975

4.5MEDIUM

Key Information:

Vendor

Oracle
Status
Oracle Database Server
Vendor
CVE Published:
20 January 2026

What is CVE-2026-21975?

A vulnerability exists in the Java VM component of Oracle Database Server that allows an authenticated user with network access to compromise the Java VM. This issue can lead to unauthorized actions, including causing persistent crashes or hangs, resulting in denial of service conditions. Successful exploitation typically requires human interaction from a third party, making this vulnerability particularly concerning for environments with inadequate user access controls.

Affected Version(s)

Oracle Database Server 19.3 <= 19.29

Oracle Database Server 21.3 <= 21.20

References

https://www.oracle.com/security-alerts/cpujan2026.html
vendor-advisory

CVSS V3.1

Score:
4.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.