CVE-2026-21975 (GCVE-0-2026-21975)

Vulnerability from cvelistv5 – Published: 2026-01-20 21:56 – Updated: 2026-01-21 14:36
VLAI?
Summary
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).
Severity ?
4.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H
CWE
  • 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.
Assigner
References
Impacted products
Vendor Product Version
Oracle Corporation Oracle Database Server Affected: 19.3 , ≤ 19.29 (custom)
Affected: 21.3 , ≤ 21.20 (custom)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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