Vulnerability in Oracle Java Virtual Machine
CVE-2026-21975
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).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (16.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 16.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Oracle Java Virtual Machine
- Oracle Corporation Database Server — versions 19.3, 21.3
Weakness classification (CWE)
References
- www.oracle.com/security-alerts/cpujan2026.html (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-21975?
- CVE-2026-21975 is a medium-severity vulnerability in Oracle Java Virtual Machine, classified under Improper Resource Shutdown or Release. CVSS score: 4.5/10. Published 2026-01-20.
- How severe is CVE-2026-21975?
- Medium severity. CVSS v3 base score is 4.5 out of 10.