Medium severity · published Jan 20, 2026
CVE-2026-21975
Vulnerability in the Java VM component of Oracle Database Server
4.5
CVSS
0.3%
EPSS
No
On KEV
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
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 17% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OD
Oracle Database Server · Oracle Corporation
19.3 through 19.29; 21.3 through 21.20 · source: vendor
JV
Java Virtual Machine · Oracle
19.3 through 19.29; 21.3 through 21.20 · source: NVD
Affected product
OD
Oracle Database Server
Oracle Corporation
More from Oracle Database Server
9.9
CVE-2026-61211
Vulnerability in the RDBMS component of Oracle Database Server
9.6
CVE-2026-71064
Vulnerability in the Portable Clusterware component of Oracle Database Server
9.6
CVE-2026-71063
Vulnerability in the Portable Clusterware component of Oracle Database Server
9.1
CVE-2026-71102
Vulnerability in the Portable Clusterware component of Oracle Database Server
9.0
CVE-2026-46833
Vulnerability in the Net Service component of Oracle Database Server