CVE-2026-21975

MEDIUM
4.5
CVSS Score
Published: January 20, 2026 at 09:56 PM UTC
Updated: June 17, 2026 at 10:19 AM UTC
2 products affected across 1 vendorJava Virtual MachineDatabase Server

Using Oracle Database Server by Oracle Corporation?

Get instant alerts when new vulnerabilities affect Oracle Database Server - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM4.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

19.3 ≤ v ≤ 19.2921.3 ≤ v ≤ 21.20
19.3 ≤ v ≤ 19.2921.3 ≤ v ≤ 21.2019.321.3

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.5MEDIUMoracle
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-404

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card