External risk intelligence

Oracle WebCenter Enterprise Capture Takeover Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 9.9)

CVE-2026-46779

A critical vulnerability in Oracle WebCenter Enterprise Capture allows a low-privileged attacker with network access to take control of the system, potentially impacting other products. This could lead to significant impacts on confidentiality, integrity, and availability.

Halo Surface Signal

Possible · external exposure

3Halo Surface Signal

The vulnerability is reachable via the T3 protocol, which is used for communication with Oracle WebLogic Server. While this protocol can be exposed to the internet, it is typically used for internal application server communication and middleware connectivity rather than being a public-facing service by design.

Horizon Alert

Summary of the vulnerability and why it matters

A critical vulnerability has been identified in Oracle WebCenter Enterprise Capture, a component of Oracle Fusion Middleware. This issue could allow a low-privileged attacker with network access to take control of the system, potentially impacting other connected products. The high CVSS score indicates significant risks to confidentiality, integrity, and availability.

  • Unauthorized control of capture systems.
  • Impacts core business processes and data.
  • Confirm relevance and exposure for critical systems.

Attack Path

How an attacker could exploit the issue

An attacker with limited privileges could exploit this vulnerability by accessing the Oracle WebCenter Enterprise Capture product over the network. The vulnerability resides within the Client Bundle component, and a successful attack could allow the attacker to gain complete control of the system, potentially affecting other related products.

  • Network access and low privilege required.
  • Attacker triggers vulnerability via T3 protocol.
  • Complete system takeover is possible.

Live Threat

Current exploitation, exposure, and threat context

A low-privileged attacker with network access via T3 could potentially compromise Oracle WebCenter Enterprise Capture, leading to a complete takeover of the product. While the vulnerability resides within Oracle WebCenter Enterprise Capture, it may also impact additional products due to its scope. This could result in significant confidentiality, integrity, and availability impacts.

  • System data and service behavior at risk.
  • Network access via T3 protocol.
  • Complete takeover of Oracle WebCenter Enterprise Capture.

Operational Fix

Recommended remediation, mitigation, and detection steps

This critical vulnerability in Oracle WebCenter Enterprise Capture may require coordination between application owners, infrastructure teams, and potentially vendor management. The first practical step is to identify all instances of the affected Oracle WebCenter Enterprise Capture product, determine their exposure and business criticality, and then confirm the accountable owner for each instance. Remediation planning should then be based on the identified risk and operational impact.

  • Application owners should lead issue ownership.
  • Verify instance exposure and criticality first.
  • Plan remediation, coordinate with Oracle.

Supplementary metadata

PCI scan relevance

Yes

CVE-2026-46779 — Halo PCI Relevance: Yes. Under typical PCI ASV external scan criteria, this issue may be flagged for scan prioritization.

A critical vulnerability affecting Oracle WebCenter Enterprise Capture can be exploited by an attacker with limited privileges, leading to a complete takeover of the system.

Scan-prioritization guidance only—not a PCI DSS certification or ASV attestation.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

Free EASM Trial See How Signal Works

Frequently asked questions

What is Oracle WebCenter Enterprise Capture?

It is a product within Oracle Fusion Middleware designed to capture, organize, and manage business documents and data. Organizations use it to streamline content intake into enterprise systems. This specific vulnerability affects the Client Bundle component in versions 12.2.1.4.0 and 14.1.2.0.0, which handles the communication and client-side processing tasks for the software.

What does CWE-284 mean for CVE-2026-46779?

CWE-284 refers to Improper Access Control. This means the software fails to correctly restrict who can perform certain actions or access specific functions. In the context of this CVE, it indicates that a user with low-level privileges can bypass intended security boundaries to gain unauthorized control over the system, effectively escalating their access far beyond what they should be permitted to do.

How is this vulnerability triggered?

An attacker triggers this issue by using the T3 protocol to communicate with the affected software over a network. While successful exploitation grants significant control, the vulnerability requires the attacker to already have valid, albeit low-level, network access to the system. Simply having public network access alone is not enough; the attacker must be able to interact with the system via the T3 protocol to initiate the compromise.

Do I need to worry if my system is internal?

Halo Surface Signal indicates that while the T3 protocol can be exposed to the internet, it is primarily used for internal middleware and application server connectivity. If your instance is restricted to internal-only communication, it is less likely to be reachable by external threats. However, because this allows for complete system takeover, you should still evaluate if internal network segments have appropriate access controls in place.

When should I start responding to this?

You should begin by identifying all instances of Oracle WebCenter Enterprise Capture in your environment and confirming who is responsible for each. Once you have a list of systems, determine which are critical to your business operations. Work with your infrastructure and application teams to coordinate remediation efforts and plan your path forward based on the risk to your specific deployment.

References

Sources and related resources

Primary sources: NVD, CVE.org.

NVDPublished