CS0-003 Vulnerability Management Practice Question
This CS0-003 practice question tests your understanding of vulnerability management. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. A key principle to apply: cISA KEV lists vulnerabilities actively exploited in the wild.. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A vulnerability report has 900 findings. One medium CVSS vulnerability is listed in CISA KEV and has high EPSS; several high CVSS issues are not exploitable in the environment. What should the analyst recommend? For business prioritization, Which recommendation gives the best risk-based order of work?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Prioritize the KEV/high-EPSS issue after confirming asset exposure
Option C is correct because it combines threat intelligence (CISA KEV and high EPSS) with environmental context (asset exposure) to prioritize the vulnerability that is actively exploited and likely to be used in attacks, even though its CVSS base score is medium. This aligns with risk-based vulnerability management, which weights exploitability and business impact over raw severity scores.
Key principle: CISA KEV lists vulnerabilities actively exploited in the wild.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Always sort only by CVSS base score
Why it's wrong here
CVSS is useful but incomplete without exploitability and exposure.
✗
Remediate alphabetically by CVE ID
Why it's wrong here
CVE order has no risk meaning.
✓
Prioritize the KEV/high-EPSS issue after confirming asset exposure
Why this is correct
Known exploitation and likelihood can outweigh base CVSS in risk-based prioritization.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
CISA KEV lists vulnerabilities actively exploited in the wild.
✗
Remediate only vulnerabilities with vendor logos in the report
Why it's wrong here
Vendor branding is irrelevant to risk.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that CVSS base score alone determines priority, but the trap here is that candidates ignore the KEV/EPSS context and choose to remediate high-CVSS issues first, failing to apply risk-based prioritization that accounts for real-world exploitability.
Detailed technical explanation
How to think about this question
CISA KEV is a curated list of vulnerabilities known to be exploited in the wild, and EPSS (Exploit Prediction Scoring System) uses machine learning on threat intelligence to predict the likelihood of exploitation within 30 days. A high EPSS score (e.g., >0.9) combined with KEV listing indicates active weaponization, making remediation urgent regardless of CVSS base score. In contrast, a high CVSS score (e.g., 9.8) may reflect theoretical impact but if the vulnerable service is not exposed or is mitigated by a compensating control, the actual risk is low.
KKey Concepts to Remember
CISA KEV lists vulnerabilities actively exploited in the wild.
EPSS predicts the likelihood of future exploitation.
Risk-based prioritization considers exploitability and environmental context.
Asset exposure is crucial for confirming actual risk.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
CISA KEV lists vulnerabilities actively exploited in the wild.
Real-world example
How this comes up in practice
A security team runs a vulnerability scan on a web application and discovers an unpatched SQL injection flaw. The team prioritises remediation by CVSS score — critical flaws are patched within 24 hours, high within 7 days. Questions like this test whether you understand vulnerability management processes, scanning tools, and remediation prioritisation.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this CS0-003 question in full detail.
Review cISA KEV lists vulnerabilities actively exploited in the wild., then practise related CS0-003 questions on the same topic to reinforce the concept.
Vulnerability Management — This question tests Vulnerability Management — CISA KEV lists vulnerabilities actively exploited in the wild..
What is the correct answer to this question?
The correct answer is: Prioritize the KEV/high-EPSS issue after confirming asset exposure — Option C is correct because it combines threat intelligence (CISA KEV and high EPSS) with environmental context (asset exposure) to prioritize the vulnerability that is actively exploited and likely to be used in attacks, even though its CVSS base score is medium. This aligns with risk-based vulnerability management, which weights exploitability and business impact over raw severity scores.
What should I do if I get this CS0-003 question wrong?
Review cISA KEV lists vulnerabilities actively exploited in the wild., then practise related CS0-003 questions on the same topic to reinforce the concept.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
CISA KEV lists vulnerabilities actively exploited in the wild.
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Question Discussion
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