CISO ADVISORS · SECURITY BRIEFING
The Business Case
for Vulnerability
Management
Why Finding Your Vulnerabilities Before Attackers Do Is Non-Negotiable
Real breach data, ROI analysis, and the cost of doing nothing
Ed Moore, CISSP · CISM · C-CISO · CEH | CISO Advisors | cisoadvisors.com
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CA
THE BUSINESS CASE
Vulnerability Management by the Numbers
The data is clear — unpatched vulnerabilities are the most predictable, preventable breach vector
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60%
Of breaches
exploited a known vulnerability where a patch existed (Ponemon 2023)
15 days
Average time
attackers exploit a new CVE after public disclosure
$4.45M
Average cost
of a data breach (IBM 2023) — vuln mgmt programs reduce this by $1.49M
Equifax (2017)
CVE-2017-5638 — Apache Struts
Patch available 2 months before breach; never applied
147M records; $575M FTC settlement
WannaCry (2017)
MS17-010 — Windows SMBv1
Microsoft patch released March 2017; WannaCry May 2017
200,000+ systems in 150 countries; $4B+ total damage
Log4Shell (2021)
CVE-2021-44228 — Log4j
Patch available Dec 10, 2021; active exploitation same day
Hundreds of millions of systems exposed; ongoing exploitation 2+ years later
MOVEit (2023)
CVE-2023-34362 — SQL injection
Cl0p exploited before patch released; zero-day exploitation
2,700+ organizations; 95M+ individuals; $10B+ total estimated impact
CA
DEFINITION
What Vulnerability Management Actually Is
It's not just running a scanner — it's a continuous business process
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1. Asset Discovery
You can't protect what you don't know exists. VM starts with a complete, current inventory of all assets — endpoints, servers, cloud, OT, IoT.
2. Continuous Scanning
Automated scanning of all assets on a defined schedule — weekly minimum for production, continuous for internet-facing systems.
3. Risk-Based Prioritization
Not all vulnerabilities are equal. Prioritize by CVSS score + exploit availability + asset criticality + data sensitivity. Focus on what matters.
4. Remediation & Patching
Assign owners, set SLAs, track remediation to closure. 30/60/90-day SLAs by severity. Verify fixes are complete.
5. Exception Management
Some vulnerabilities can't be immediately patched. Document exceptions, compensating controls, and remediation timelines.
6. Reporting & Metrics
Report vulnerability trends to leadership. Mean Time to Remediate (MTTR), patch compliance rate, critical open vulns by age.
CA
THE COST OF INACTION
Without Vulnerability Management vs. With It
The business risk of not running a program is far greater than the cost of running one
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✗ Without Vulnerability Management
Attackers know your vulnerabilities before you do
Breaches exploit known, patchable issues — fully preventable
Average dwell time 200+ days — attacker lives in your network
Compliance failures: HIPAA, PCI, SOC 2 all require VM
Cyber insurance premium increases or coverage denial
Board and leadership liability if known risks go unaddressed
✓ With Vulnerability Management
Find vulnerabilities before attackers — close the window
$1.49M average breach cost reduction (IBM 2023)
Demonstrates due care to auditors, regulators, and insurers
Prioritized, risk-based patching — not reactive fire-fighting
Board can demonstrate security governance and oversight
Cyber insurance eligibility and premium reduction
VM program cost: $15K–$100K/year · Average breach cost avoided: $1.49M–$4.45M · ROI: 15:1 to 45:1
CA
COMPLIANCE
Vulnerability Management as a Compliance Requirement
These frameworks explicitly require a vulnerability management program — not optional unless you want to be breached
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Framework
Requirement / Control
HIPAA Security Rule
§164.308(a)(5) — Security Awareness and Training: guard against malicious software; periodic technical and non-technical evaluation
NIST 800-53 Rev 5
RA-5: Vulnerability Monitoring and Scanning; SI-2: Flaw Remediation; CA-7: Continuous Monitoring
PCI DSS v4.0
Req 6.3: Security Vulnerabilities Identified and Addressed; Req 11.3: External and Internal Vulnerability Scans
SOC 2 (CC7.1)
The entity uses detection and monitoring procedures to identify changes to configurations that result in introduction of new vulnerabilities
CIS Controls v8
CIS Control 7: Continuous Vulnerability Management — Develop a plan to assess and track vulnerabilities on all enterprise assets
ISO 27001:2022
A.8.8: Management of Technical Vulnerabilities — timely identification of technical vulnerabilities with appropriate measures taken
CMMC 2.0 (Level 2)
RM.2.141: Periodically assess the risk to organizational operations; RM.2.142: Scan for vulnerabilities in organizational systems
Cyber Insurance
Most cyber insurers now require documented, active vulnerability management as a condition of coverage
KEY TAKEAWAYS
Action Items & Next Steps
60% of breaches exploit known vulnerabilities — VM is the most direct breach prevention control
The business ROI is 15:1 to 45:1 — VM programs pay for themselves in breach cost avoidance
HIPAA, PCI DSS, SOC 2, and NIST all explicitly require a vulnerability management program
Cyber insurers are increasingly requiring VM as a coverage condition — non-negotiable
Not running a VM program is an executive and board governance liability
CISO Advisors · Ed Moore
emoore@cisoadvisors.org · cisoadvisors.com
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