CVE-2026-73953Network attack vector

Unauthenticated takeover via undisclosed Portlet Services flaw

Published Sep 15, 2026 · Updated Sep 15, 2026

An undisclosed flaw in Oracle WebCenter Portal Portlet Services 12.2.1.4.0 and 14.1.2.0.0 allows remote attackers to take over the portal via HTTP. Oracle has not published the affected endpoint or the incorrect operation that Portlet Services performs on untrusted input. No authentication or user interaction is required, and successful exploitation permits complete compromise of portal confidentiality, integrity, and availability.

CVSS severity9.8
Critical
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An undisclosed flaw in Oracle WebCenter Portal Portlet Services 12.2.1.4.0 and 14.1.2.0.0 allows remote attackers to take over the portal via HTTP. Oracle has not published the affected endpoint or the incorrect operation that Portlet Services performs on untrusted input. No authentication or user interaction is required, and successful exploitation permits complete compromise of portal confidentiality, integrity, and availability.

The record

CVE
CVE-2026-73953
Published
Sep 15, 2026
Updated
Sep 15, 2026
Vendor
Oracle
Product
Oracle WebCenter Portal
Classifications
T1190
Attack vector
network
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=12.2.1.4.0
  2. Affected versionversion=14.1.2.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Oracle · Oracle WebCenter Portalversion=12.2.1.4.0; version=14.1.2.0.0

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.

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
Privilegesunauthenticated
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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