CVE-2026-47046Network attack vector

Unauthenticated data modification and database denial-of-service

Published Jul 21, 2026 · Updated Jul 21, 2026

Uncontrolled resource consumption in Oracle Database 23.4.0 through 23.26.2 allows remote attackers to disrupt or modify RDBMS data via Oracle Net. Oracle identifies the RDBMS component but has not disclosed the code-level locus or the operation that mishandles network input. No credentials or user interaction are required; successful requests can update, insert, or delete some accessible data and hang or repeatedly crash the database.

CVSS severity8.2
High
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled resource consumption in Oracle Database 23.4.0 through 23.26.2 allows remote attackers to disrupt or modify RDBMS data via Oracle Net. Oracle identifies the RDBMS component but has not disclosed the code-level locus or the operation that mishandles network input. No credentials or user interaction are required; successful requests can update, insert, or delete some accessible data and hang or repeatedly crash the database.

The record

CVE
CVE-2026-47046
Published
Jul 21, 2026
Updated
Jul 21, 2026
Vendor
Oracle Corporation
Product
Oracle Database
Classifications
CWE-400, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 21, 2026Record 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=23.4.0 <=23.26.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Oracle Corporation · Oracle Databaseversion=23.4.0 <=23.26.2

Published CVSS scores

8.2Oracle CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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