CVE-2026-62591Network attack vector

Unauthenticated reading and modification of integration data

Published Aug 18, 2026 · Updated Aug 20, 2026

Improper access control in Open Integration for Oracle Siebel CRM Integration 25.12 through 26.6 allows remote attackers to alter data via HTTP. Oracle has not disclosed the affected endpoint or the incorrect access-control operation performed on attacker-controlled input. Exploitation requires no authentication but does require another person to interact, and it permits reading, creating, deleting, or modifying all accessible integration data.

CVSS severity8.1
High
EPSS probability0.35%
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 Open Integration for Oracle Siebel CRM Integration 25.12 through 26.6 allows remote attackers to alter data via HTTP. Oracle has not disclosed the affected endpoint or the incorrect access-control operation performed on attacker-controlled input. Exploitation requires no authentication but does require another person to interact, and it permits reading, creating, deleting, or modifying all accessible integration data.

The record

CVE
CVE-2026-62591
Published
Aug 18, 2026
Updated
Aug 20, 2026
Vendor
Oracle Corporation
Product
Siebel CRM Integration
Classifications
CWE-284
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 20, 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=25.12 <=26.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Oracle Corporation · Siebel CRM Integrationversion=25.12 <=26.6

Published CVSS scores

8.1Oracle CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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.

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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-284Improper Access Control

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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