CVE-2026-61326Network attack vector

Authenticated data access and modification

Published Aug 18, 2026 · Updated Aug 20, 2026

Vulnerability in Oracle Siebel CRM Cloud Applications 22.3 through 26.6 allows remote authenticated users to read and modify data via HTTP. Oracle attributes the flaw to the Siebel Cloud Manager component, but its advisory and CSAF record do not disclose the affected endpoint, code path, or validation failure, so the incorrect operation on untrusted input is not public. Exploitation requires low-privileged network access and yields high-confidence read access plus limited write capability to application data, with Oracle also marking the impact scope as changed.

CVSS severity8.5
High
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Vulnerability in Oracle Siebel CRM Cloud Applications 22.3 through 26.6 allows remote authenticated users to read and modify data via HTTP. Oracle attributes the flaw to the Siebel Cloud Manager component, but its advisory and CSAF record do not disclose the affected endpoint, code path, or validation failure, so the incorrect operation on untrusted input is not public. Exploitation requires low-privileged network access and yields high-confidence read access plus limited write capability to application data, with Oracle also marking the impact scope as changed.

The record

CVE
CVE-2026-61326
Published
Aug 18, 2026
Updated
Aug 20, 2026
Vendor
Oracle
Product
Siebel CRM Cloud Applications
Classifications
T1190
Attack vector
network
Privileges
authenticated

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=22.3 <=26.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Oracle · Siebel CRM Cloud Applicationsversion=22.3 <=26.6

Published CVSS scores

8.5OracleCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1190Exploit Public-Facing Application

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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