CVE-2026-21975 is a vulnerability in the Java VM component of Oracle Database Server, affecting versions 19.3-19.29 and 21.3-21.20. This easily exploitable flaw allows a high-privileged, authenticated attacker with network access via Oracle Net to compromise the Java VM. Successful attacks, requiring human interaction, can lead to a complete denial of service (DOS) by causing a hang or repeatable crash. The CVSS 3.1 Base Score is 4.5 (Medium), primarily impacting availability. There is no evidence of active exploitation, nor are there public exploit codes available in Metasploit, Nuclei, or ExploitDB, though it has garnered significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 19.3, <= 19.29CPE matchmatch criteria | cpe:2.3:a:oracle:java_virtual_machine:*:*:*:*:*:*:*:* | ||
>= 21.3, <= 21.20CPE matchmatch criteria | cpe:2.3:a:oracle:java_virtual_machine:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H
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