MANUFACTURING CYBER RISK STORY #2

The Patch Gap: Why Manufacturing Risks Are Still Preventable

Q: What are cybersecurity best practices for manufacturing patch management?

Manufacturers should improve patch management by maintaining accurate asset visibility, prioritizing reachable and high-impact systems, using production-aware maintenance windows, documenting exceptions and reviewing remediation progress consistently.

Q: How can manufacturing companies improve their cybersecurity defenses through patching?

Manufacturers can strengthen defenses by focusing limited maintenance time on the vulnerabilities most likely to create business problems, especially those that are reachable, impactful and tied to critical operations.

Q: What are the biggest patch management challenges in manufacturing?

Common challenges include legacy systems, limited maintenance windows, uptime pressures, unsupported platforms, remote access tools and incomplete visibility into which vulnerabilities affect the most critical systems.

Q: How much of manufacturing cyber risk is patch-related?

Patch-related risk can represent a meaningful share of manufacturing cybersecurity findings, especially when known vulnerabilities remain unresolved across reachable systems, remote access tools and production-connected assets.

Q: How do we prevent ransomware attacks on manufacturing equipment through better patching?

Reducing ransomware risk through patching starts with identifying critical assets, prioritizing reachable vulnerabilities, securing remote access tools, isolating unsupported systems and making sure delays have owners, reasons and next steps.

Patch risk grows when known vulnerabilities, aging systems and production constraints allow preventable exposure to persist across manufacturing environments.

The preventable risk behind the patch gap.

Manufacturers often think of cyber risk as something advanced — ransomware operators, zero-day exploits or highly sophisticated attacks that are difficult to anticipate and harder to stop. But the patch-related findings tell a simpler story: a meaningful share of exposure came from known vulnerabilities with fixes that already existed but had not yet been applied.

That is what makes the patch gap so important. In the findings behind this story, 15% of all issues were patch-related, including 246 patch-related findings and 81 instances of possible missing security patches across all 21 manufacturers assessed by Accent Consulting. We also found end-of-life operating systems still supporting production workloads and remote access tools carrying critical vulnerabilities. For manufacturing leaders, the issue is not merely that vulnerabilities exist; it is that many remain open even when the roadmap to fix them is already available.

100%

Manufacturers Affected

81

Missing Security Patches

246

Patch-Related
Findings

15%

Of Total Issues Are
Patch-Related

PATCH VISIBILITY

Why patch management starts with knowing what you have.

Manufacturers cannot reduce patch risk without a current view of systems, software versions, ownership and patch status. A reliable inventory turns patching from a reactive scramble into a managed process, especially when production systems, remote access tools and legacy platforms all require different approval paths.

The goal is not perfect visibility overnight. It is enough clarity to know which known vulnerabilities are exposed, which systems support critical operations and which patch exceptions need a business decision instead of indefinite delay.

RISK PRIORITIZATION

Why should reachable and high-impact systems move first.

The findings show that 15% of issues were patch-related, including 246 patch-related findings. That makes prioritization essential. Internet-facing systems, remote administration tools and assets tied to production should be addressed before lower-impact backlog items.

A stronger model weighs exploitability, exposure, operational impact and asset criticality. That helps teams focus limited maintenance time on the vulnerabilities most likely to become more significant business disruptions. It also gives leaders a clearer basis for deciding which issues should move first.

PRODUCTION CONSTRAINTS

Why uptime cannot become a permanent reason to defer fixes.

Manufacturing patching is difficult because uptime, validation, vendor timing and equipment dependencies are real constraints. Those constraints should shape the patch plan, not turn known vulnerabilities into accepted background risk.

High-maturity programs use production-aware maintenance windows, testing, documented exceptions and review dates. The discipline is not patching everything instantly; it is making sure every task has an owner, a reason and a next step. That approach helps reduce avoidable exposure while keeping decisions visible and accountable. Over time, it also creates a more reliable system for prioritizing fixes without losing operational context.

LEGACY AND REMOTE ACCESS

Why unsupported systems and support tools need special attention.

The patch gap is not limited to ordinary updates. The findings also point to end-of-life operating systems still supporting production workloads and remote access software carrying critical vulnerabilities. These assets can combine operational importance with elevated exposure, which makes them priority risks.

Unsupported platforms may need isolation, replacement planning or compensating controls when normal patching is no longer possible. Remote access tools should be kept current, protected with MFA, limited from direct internet exposure and governed like any other critical pathway into the environment across sites, teams and operational workflows.

COMMON QUESTIONS

What You Can Do Next

What are cybersecurity best practices for manufacturing patch management?

Cybersecurity best practices for manufacturing patching start with visibility, prioritization, and operational discipline. Organizations reduce risk by maintaining a current system inventory, continuously tracking patch status, prioritizing internet-facing and high-value assets, scheduling production-aware maintenance windows and treating patch exceptions as active risks. The goal is not perfection but reducing the number of known vulnerabilities that remain unaddressed.

How can manufacturing companies improve their cybersecurity defenses through patching?

Companies can improve their cybersecurity defenses by closing known vulnerabilities faster and more deliberately. A stronger approach includes maintaining an inventory of all systems and patch status, prioritizing internet-facing and high-risk systems, scheduling OT and production-aware maintenance windows and implementing automated patching where appropriate.

What are the biggest patch management challenges in manufacturing?

Manufacturers often face limited maintenance windows, systems that cannot be easily rebooted, legacy application compatibility concerns, vendor-controlled update timing and production-critical assets that are difficult to modify. These constraints are real, but so is the exposure they create.

How much of manufacturing cyber risk is patch-related?

According to the patch story framework, 15% of issues were patch-related, including 246 patch-related findings across the assessed environments. That is significant because it shows patching is not a minor hygiene issue. It is one of the larger and more preventable concentrations of cyber risk in the environment.

How do we prevent ransomware attacks on manufacturing equipment through better perimeter security?

PATCH MANAGEMENT NEXT STEPS

Prioritize the patch gaps that matter most.

Turn known vulnerabilities into a clearer action plan by improving patch visibility, prioritizing reachable systems and reducing preventable exposure.

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