External risk intelligence

Dell PowerProtect Data Domain Management Center Authentication Bypass by Spoofing Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 9.1)

CVE-2026-90717

Dell PowerProtect Data Domain Management Center is a centralized management interface designed for overseeing enterprise data protection infrastructure. These management consoles are typically deployed as network-accessible services, often providing a web-based dashboard for administrators to monitor and configure managed systems across a network, making them reachable in many enterprise deployment patterns.

Authentication Bypass

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

This advisory details an authentication bypass vulnerability in Dell PowerProtect Data Domain Management Center, which could allow unauthorized access and privilege escalation. If exploited, this could impact other managed Data Domain systems.

  • Authentication bypass allows unauthorized access.
  • Affects critical data protection management systems.
  • Verify relevance to our Data Domain environment.

Attack Path

How an attacker could exploit the issue

An attacker with limited privileges could exploit this vulnerability by remotely accessing the Dell PowerProtect Data Domain Management Center. By spoofing authentication, they could bypass security measures, leading to elevated privileges and potential impact on other managed Data Domain systems.

  • Remote access and low privileges required.
  • Authentication bypass via spoofing.
  • Elevation of privileges and system impact.

Live Threat

Current exploitation, exposure, and threat context

A low-privileged attacker with network access could bypass authentication and elevate their privileges, potentially affecting other managed Dell PowerProtect Data Domain systems.

  • Management system data could be at risk.
  • Via network access and authentication bypass.
  • Unauthorized access and privilege escalation.

Operational Fix

Recommended remediation, mitigation, and detection steps

Dell PowerProtect Data Domain Management Center is a centralized management tool that often resides within the infrastructure or platform teams' purview. The initial step involves identifying all deployed instances, confirming their network reachability and business criticality, and then locating the accountable system owner to plan remediation based on assessed risk.

  • Infrastructure or platform teams own this.
  • Verify affected system reachability and criticality.
  • Plan remediation, coordinate with vendors.

Supplementary metadata

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.

Frequently asked questions

What is Dell PowerProtect Data Domain Management Center?

It is a centralized management interface used to oversee and configure enterprise data protection systems. IT teams rely on it to monitor storage health, manage backup policies, and control multiple Data Domain units from a single web-based dashboard.

How does this authentication bypass work?

This vulnerability, classified as CWE-290 (Authentication Bypass by Spoofing), occurs when a system incorrectly trusts manipulated credentials. By mimicking legitimate authentication traffic, an attacker can trick the system into granting unauthorized access and escalating their privileges.

Does this vulnerability require special access to trigger?

An attacker needs existing low-level network access and a basic user account to attempt the exploit. Simply being on the same local network or having general internet visibility is not enough to trigger the bug without that prerequisite authenticated session.

Is my Data Domain instance at risk?

According to Halo Surface Signal, these management consoles are often network-accessible web services. If your instance is reachable over the network or deployed in a way that faces other segments, it may be more exposed to potential remote exploitation attempts.

What should I do first to address this?

Start by identifying all instances of the Management Center within your environment to confirm their versions. Once mapped, coordinate with your infrastructure team to verify the criticality of these systems and prepare to apply the vendor's security updates.

References