The world as we know it is connected to IT, and IT relies on its underlying infrastructure. Organizations must prioritize maintaining this infrastructure; otherwise, any disruption or breach has a ripple effect that takes services offline for millions of users (take 2024’s CrowdStrike outage, for example). A big part of this maintenance is ensuring that all hardware components, including console servers, are up-to-date and secure. Most console servers reach end-of-life (EOL) and need to be replaced, but for many reasons, whether budgetary concerns or the “if it isn’t broken” mentality, IT teams often keep their EOL devices. Let’s look at the risks of using EOL console servers, and why replacing them goes hand-in-hand with securing IT.

The Risks of Using End-of-Life Console Servers

End-of-life console servers can undermine the security and functionality of IT systems. These risks include:

1. Lack of Security Features and Updates

Aging console servers lack adequate hardware and management security features, meaning they can’t support a zero trust approach. On top of this, once a console server reaches EOL, the manufacturer stops providing security patches and updates. The device then becomes vulnerable to newly discovered CVEs and complex cyberattacks (like the MOVEit and Ragnar Locker breaches). Cybercriminals often target outdated hardware because they know that these devices are no longer receiving updates, making them easy entry points for launching attacks.

2. Compliance Issues

Many industries have stringent regulatory requirements regarding data security and IT infrastructure. DORA, NIS2 (EU), NIST2 (US), PCI 4.0 (finance), and CER Directive are just a few of the updated regulations that are cracking down on how organizations architect IT, including the management layer. Using EOL hardware can lead to non-compliance, resulting in fines and legal repercussions. Regulatory bodies expect organizations to use up-to-date and secure equipment to protect sensitive information.

3. Prolonged Recovery

EOL console servers are prone to failures and inefficiencies. As these devices age, their performance deteriorates, leading to increased downtime and disruptions. Most console servers are Gen 2, meaning they offer basic remote troubleshooting (to address break/fix scenarios) and limited automation capabilities. When there is a severe disruption, such as a ransomware attack, hackers can easily access and encrypt these devices to lock out admin access. Organizations then must endure prolonged recovery (like the CrowdStrike outage, or 2023’s MGM attack) because they need to physically decommission and restore their infrastructure.

The Importance of Replacing EOL Console Servers

Here’s why replacing EOL console servers is essential to securing IT:

1. Modern Security Approach

Zero trust is an approach that uses segmentation across IT assets. This ensures that only authorized users can access resources necessary for their job function. This approach requires SAML, SSO, MFA/2FA, and role-based access controls, which are only supported by modern console servers. Modern devices additionally feature advanced security through encryption, signed OS, and tampering detection. This ensures a complete cyber and physical approach to security.

2. Protection Against New Threats

New CVEs and evolving threats can easily take advantage of EOL devices that no longer receive updates. Modern console servers benefit from ongoing support in the form of firmware upgrades and security patches. Upgrading with a security-focused device vendor can drastically shrink the attack surface, by addressing supply chain security risks, codebase integrity, and CVE patching.

3. Ease of Compliance

EOL devices lack modern security features, but this isn’t the only reason why they make it difficult or impossible to comply with regulations. They also lack the ability to isolate the control plane from the production network (see Diagram 1 below), meaning attackers can easily move between the two in order to launch ransomware and steal sensitive information. Watchdog agencies and new legislation are stipulating that organizations follow the latest best practice of separating the control plane from production, called Isolated Management Infrastructure (IMI). Modern console servers make this best practice simple to achieve by offering drop-in out-of-band that is completely isolated from production assets (see Diagram 2 below). This means that the organization is always in control of its IT assets and sensitive data.

Diagram 1: Though an acceptable approach, Gen 2 out-of-band lacks isolation and leaves management interfaces vulnerable to the internet.

Diagram 2: Gen 3 out-of-band fully isolates the control plane to guarantee organizations retain control of their IT assets and sensitive info.

4. Faster Recovery

New console servers are designed to handle more workloads and functions, which eliminates single-purpose devices and shrinks the attack surface. They can also run VMs and Docker containers to host applications. This enables what Gartner calls the Isolated Recovery Environment (IRE) (see Diagram 3 below), which is becoming essential for faster recovery from ransomware. Since the IMI component prohibits attackers from accessing the control plane, admins retain control during an attack. They can use the IMI to deploy their IRE and the necessary applications — remotely — to decommission, cleanse, and restore their infected infrastructure. This means that they don’t have to roll trucks week after week when there’s an attack; they just need to log into their management infrastructure to begin assessing and responding immediately, which significantly reduces recovery times.

Diagram 3: The Isolated Recovery Environment allows for a comprehensive and rapid response to ransomware attacks.

Get a Walkthrough of IMI and IRE

Let’s cover what IMI and IRE would look like in your environment and walk through some outage recovery scenarios. Use the link below to set up a technical discussion.

Meet Me at Cisco Live Amsterdam 2026

Visit booth C10 at Cisco Live Amsterdam to chat about IMI, IRE, and replacing end-of-life console servers. You can also catch my 10-minute presentation on Wednesday, February 11 at 1:50pm in the Speakers Corner. I’ll cover From Pilot Projects to Global Rollouts: Why Out-of-Band Management is Crucial for Scaling AI Infrastructure, with more concepts and network diagrams showing how to achieve true resilience. Visit our Cisco Live page below to let me know you’re coming. See you at the show!