How Long Does It Actually Take to Remediate a Critical Vulnerability?

Organizations are getting better at finding vulnerabilities. Modern threat intelligence scanners and continuous monitoring tools generate a steady stream of alerts and insights, warning Security teams of potential risk, so they can be proactive and effective.

Yet discovering vulnerabilities is only the first step. The real challenge is getting them fixed before attackers can exploit them. 

Unfortunately, the window between discovery and exploitation is shrinking. Sysdig revealed that threat actors can exploit a newly disclosed vulnerability in less than 10 hours, but the median time to remediate a critical vulnerability is about 60 days. That’s a big, dangerous gap.

In many organizations, the biggest delays occur after a vulnerability is identified, as findings move from Security teams into operational workflows where ownership, prioritization, asset visibility, and remediation tracking are more complex. Every day a critical vulnerability remains open increases operational risk, consumes valuable engineering time, and raises difficult questions from CISOs and executive leadership about why remediation hasn’t been completed.

Understanding what happens during the handoff between Security and IT is key to effective security vulnerability management, and to closing the gap between finding and fixing a vulnerability.

The Clock Is Working Against Your Security Team

Every vulnerability has an exposure window: the time between discovery and remediation. The longer it stays open, the easier it is for attackers to exploit the weakness.

Historically, organizations often had months or even years before attackers developed reliable exploits for newly disclosed vulnerabilities. But today, the risk of a known vulnerability becoming an active security incident is higher than ever. Every day, the attack surface expands as threat actors scan for unprotected systems or chain together multiple vulnerabilities to launch a large-scale attack.

Visibility isn’t usually the problem. Most enterprise Security teams use mature vulnerability scanning capabilities that identify more issues than they can realistically address at once. Risk only decreases when a vulnerability is remediated, so shortening that exposure window is a key operational metric for IT leaders looking to demonstrate how effectively the organization is addressing vulnerabilities.

Why Critical Vulnerabilities Sit Unresolved for Weeks

Once a vulnerability scanner identifies a critical issue, the operational workflow for remediation can begin. However, many critical vulnerabilities take too long to resolve for the following reasons: 

• Unclear asset ownership: No one knows who’s responsible for the vulnerable system or systems.
• Incomplete or outdated asset inventories: There’s no accurate inventory of on-premises, cloud, and remote assets.
• Duplicate or stale asset records: There are multiple records for the same device, which creates confusion about which assets actually require attention.
• Missing business context: A vulnerability’s CVSS score doesn’t tell the whole story. Security teams also need to understand how critical the affected asset is to business operations so IT can prioritize remediation appropriately.
• Competing IT priorities: Infrastructure upgrades, software deployments, user support, and routine maintenance all compete for limited resources. If there is insufficient context for establishing priorities, remediating critical vulnerabilities may be delayed.
• Disconnected ticketing workflows: Vulnerability scanners identify risk, but remediation happens through separate patch management automation and ITSM platforms. Without integration, findings disconnect from the tickets meant to resolve them.
• Limited visibility into remediation progress. Once Security creates a ticket, they may lose sight of what happens next and whether or not IT is taking action.

None of these challenges stem from a lack of Security or IT vulnerability management. But when teams work with different tools, priorities, and success metrics, there’s no single source of accurate asset data. That makes it difficult to prioritize which vulnerabilities to fix first.

As a result, IT managers lose time coordinating across teams and remediation backlogs grow. Maintenance windows are harder to schedule, and leadership may lose visibility into whether risk is actually decreasing.

Better Detection Alone Won’t Accelerate Remediation 

After investing heavily in vulnerability scanners, endpoint security tools, threat intelligence, and continuous monitoring platforms, you know where the problems exist. Adding more alerts won’t help. Closing the gap between discovery and remediation requires you to:

• Understand the severity and potential impact of each vulnerability
• Determine who on your team is responsible for fixing which assets
• Confirm that the remediation is actually complete when someone closes a ticket 
• Track remediation time and demonstrate that security risk is decreasing

Detection is an essential first step. It tells you where problems exist. Remediation demonstrates operational execution. For IT leaders, that’s the difference between reporting vulnerability counts and showing executives measurable reductions in organizational risk.

Accelerate Remediation with Shared Cyber Asset Intelligence

A shared asset foundation provides Security and IT teams access to the same trusted information and a common view of the environment that includes:

• An accurate asset inventory to help teams identify affected systems and eliminate time spent reconciling conflicting records
• Ownership visibility that makes it easier to route to the right people quickly instead of bouncing between teams
• Business context to help prioritize fixes based on real risk, not just technical severity, the core idea behind risk based vulnerability management
• Remediation tracking for monitoring progress and verifying fixes
• Measurable outcomes for performance and risk reduction

With a shared foundation, Security teams can prioritize findings with greater confidence, and IT teams have the context they need to act quickly. Equally important, leadership gains reliable metrics on remediation progress, while IT managers gain the operational context they need to prioritize work and allocate resources effectively.

By providing a trusted foundation of asset data shared across Security and IT, Lansweeper’s AI Cyber Asset Intelligence Platform helps organizations improve prioritization, accelerate remediation handoffs, and measure what matters most: how quickly known vulnerabilities can be found and resolved.

Measuring Success Means Measuring What Gets Fixed 

Today’s Security leaders, IT managers, and CIOs must all be able to demonstrate that remediation efforts are reducing organizational risk. That requires Security and IT to share a common view of assets, ownership, business context, and remediation status.

With Lansweeper providing a single source of truth, Security and IT can stop spending status meetings explaining why vulnerabilities are still unresolved, and work together to demonstrate measurable progress while improving remediation performance.

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