CVE-2026-46921Network attack vector

Authenticated takeover via undisclosed access-control flaw

Published Jun 16, 2026 · Updated Jun 16, 2026

Access control failure in Siebel CRM Cloud Applications 17.0 through 26.5 allows remote authenticated users to take over the application via HTTP. Oracle has not disclosed the specific request handler, authorization check, or input operation in Siebel Cloud Manager that permits takeover. A low-privileged account and network access to the HTTP service are required; successful exploitation grants control of the application.

CVSS severity8.8
High
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Access control failure in Siebel CRM Cloud Applications 17.0 through 26.5 allows remote authenticated users to take over the application via HTTP. Oracle has not disclosed the specific request handler, authorization check, or input operation in Siebel Cloud Manager that permits takeover. A low-privileged account and network access to the HTTP service are required; successful exploitation grants control of the application.

The record

CVE
CVE-2026-46921
Published
Jun 16, 2026
Updated
Jun 16, 2026
Vendor
Oracle
Product
Siebel CRM Cloud Applications
Classifications
CWE-287, CWE-269, CWE-284, CWE-306, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 16, 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=17.0 <=26.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Oracle · Siebel CRM Cloud Applicationsversion=17.0 <=26.5

Published CVSS scores

8.8OracleCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
CWE-269Improper Privilege Management
CWE-284Improper Access Control
CWE-306Missing Authentication for Critical Function
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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