CVE-2026-46890Network attack vector

Unauthenticated takeover via undisclosed HTTP flaw

Published Jun 16, 2026 · Updated Jun 16, 2026

Authentication failure in Oracle Siebel Marketing 17.0 through 26.5 allows remote attackers to take over the application via HTTP. Oracle has not disclosed the vulnerable endpoint or the incorrect authentication operation performed when processing an untrusted request. No credentials or user interaction are required, and successful exploitation grants control over application data and availability.

CVSS severity9.8
Critical
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication failure in Oracle Siebel Marketing 17.0 through 26.5 allows remote attackers to take over the application via HTTP. Oracle has not disclosed the vulnerable endpoint or the incorrect authentication operation performed when processing an untrusted request. No credentials or user interaction are required, and successful exploitation grants control over application data and availability.

The record

CVE
CVE-2026-46890
Published
Jun 16, 2026
Updated
Jun 16, 2026
Vendor
Oracle
Product
Siebel Marketing
Classifications
CWE-306, CWE-284, CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

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 privilegesunauthenticated

What is affected?

Oracle · Siebel Marketingversion=17.0 <=26.5

Published CVSS scores

9.8OracleCVSS:3.1/AV:N/AC:L/PR:N/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.

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