CVE-2023-21856Network attack vector

Unauthenticated data modification via HTTP

Published Jan 17, 2023 · Updated Sep 17, 2024

Improper data modification in Oracle iSetup 12.2.3 through 12.2.12 allows remote attackers to alter critical data via HTTP. Oracle identifies the locus as General Ledger Update Transform and Reports but has not disclosed the incorrect operation performed on HTTP input. No authentication or user interaction is required, and exploitation permits creation, deletion, or modification of iSetup-accessible data.

CVSS severity7.5
High
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper data modification in Oracle iSetup 12.2.3 through 12.2.12 allows remote attackers to alter critical data via HTTP. Oracle identifies the locus as General Ledger Update Transform and Reports but has not disclosed the incorrect operation performed on HTTP input. No authentication or user interaction is required, and exploitation permits creation, deletion, or modification of iSetup-accessible data.

The record

CVE
CVE-2023-21856
Published
Jan 17, 2023
Updated
Sep 17, 2024
Vendor
Oracle Corporation
Product
Oracle iSetup
Classifications
T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 17, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 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=12.2.3-12.2.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Oracle Corporation · Oracle iSetupversion=12.2.3-12.2.12

Published CVSS scores

7.5Oracle CorporationCVSS:3.1/AV:N/AC:L/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1565.001Stored Data Manipulation

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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