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CVE-2026-21975

Published: Jan 20, 2026Updated: Jan 29, 2026 Sources: CVE List NVD BDUCWE-404
NVD MITRE
4.5CVSSMEDIUM
EPSS Score
0.2%
Top 88.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:LPR:HUI:RS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-404

Affected Products

java virtual machineoracle
On-prem
Databases / relational
Oracle Database ServerOracle Corporation
On-premDatabase
Databases / relational
Database ServerOracle Corp.
On-premDatabase
Databases / relational
oraclecommercialUSDatabasesaka oracle corp.
oracle corporationcommercialUSDatabasesaka oracle
oracle corp.commercialUSDatabasesaka oracle

Exploitability

Official Patch Available

References

https://www.oracle.com/security-alerts/cpujan2026.html
oracle.com
https://www.cybersecurity-help.cz/vdb/SB2026012079
cybersecurity-help.cz

Timeline

Published
Jan 20, 2026
Last Updated
Jan 29, 2026

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