CVE-2026-83220

Unauthenticated critical-data read and modification

Published Sep 15, 2026 · Updated Sep 15, 2026

Improper access control in Oracle Siebel CRM Integration 23.6 through 26.7 allows physically proximate attackers to read and modify critical data. Oracle identifies Event Publish and Subscribe as the affected component but has not published the operation that mishandles untrusted input. Exploitation requires unauthenticated access to the attached communication segment and permits creation, deletion, modification, or disclosure of integration-accessible data.

CVSS severity8.1
High
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Oracle Siebel CRM Integration 23.6 through 26.7 allows physically proximate attackers to read and modify critical data. Oracle identifies Event Publish and Subscribe as the affected component but has not published the operation that mishandles untrusted input. Exploitation requires unauthenticated access to the attached communication segment and permits creation, deletion, modification, or disclosure of integration-accessible data.

The record

CVE
CVE-2026-83220
Published
Sep 15, 2026
Updated
Sep 15, 2026
Vendor
Oracle Corporation
Product
Siebel CRM Integration
Classifications
Unavailable
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 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=23.6 <=26.7

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Oracle Corporation · Siebel CRM Integrationversion=23.6 <=26.7

Published CVSS scores

8.1Oracle CorporationCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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