CVE-2024-20903Network attack vector

Authenticated modification of Java VM-accessible data

Published Feb 17, 2024 · Updated Nov 7, 2024

Java VM integrity failure in Oracle Database 19.3 through 19.21 and 21.3 through 21.12 allows remote authenticated users to modify data. Oracle has not published the defective Java VM operation or input that triggers the compromise. Exploitation requires Oracle Net access plus Create Session and Create Procedure privileges, and permits creation, deletion, or modification of critical or Java VM-accessible data.

CVSS severity6.5
Medium
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Java VM integrity failure in Oracle Database 19.3 through 19.21 and 21.3 through 21.12 allows remote authenticated users to modify data. Oracle has not published the defective Java VM operation or input that triggers the compromise. Exploitation requires Oracle Net access plus Create Session and Create Procedure privileges, and permits creation, deletion, or modification of critical or Java VM-accessible data.

The record

CVE
CVE-2024-20903
Published
Feb 17, 2024
Updated
Nov 7, 2024
Vendor
Oracle Corporation
Product
Oracle Database
Classifications
T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 7, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=19.3 <=19.21
  2. Affected versionversion=21.3 <=21.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Oracle Corporation · Oracle Databaseversion=19.3 <=19.21; version=21.3 <=21.12

Published CVSS scores

6.5Oracle CorporationCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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