The answer is CVE-2023-1234 on the critical server because it represents an unpatched remote code execution vulnerability with a CVSS score of 9.8, placing it in the critical severity range and indicating both high exploitability and severe business impact. To prioritize vulnerabilities by CVSS score effectively, you must consider not only the base score but also the asset’s criticality and the presence of compensating controls; here, the patched web server and the medium-severity file server with controls are lower risk. On the CRISC exam, this question tests your ability to apply risk-based prioritization rather than simply ranking by raw CVSS numbers, a common trap where candidates overlook that a patched vulnerability or one with mitigations poses negligible residual risk. Remember the memory tip: “Critical asset plus critical score equals highest risk—always check the patch and controls before you pick.”
CRISC IT Risk Assessment Practice Question
This CRISC practice question tests your understanding of it risk assessment. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. 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.
Exhibit
Refer to the exhibit.
=== Vulnerability Scan Report (Excerpt) ===
Host: 10.0.1.25 (Critical Server)
Vulnerability: CVE-2023-1234 (Remote Code Execution)
Severity: Critical (CVSS 9.8)
Status: Unpatched
Host: 10.0.2.10 (Web Server)
Vulnerability: CVE-2023-5678 (SQL Injection)
Severity: High (CVSS 7.5)
Status: Patched
Host: 10.0.3.50 (File Server)
Vulnerability: CVE-2022-9876 (Privilege Escalation)
Severity: Medium (CVSS 5.0)
Status: Compensating Control in Place
=== End of Exhibit ===
Based on the exhibit, which vulnerability poses the HIGHEST risk to the organization?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
CVE-2023-1234 on the critical server
Option A is correct because the critical server has an unpatched remote code execution vulnerability with a CVSS score of 9.8, indicating high exploitability and impact. Option B is wrong because the web server vulnerability is patched, so risk is mitigated. Option C is wrong because the file server vulnerability is medium severity and has compensating controls, reducing risk. Option D is wrong because this is an exhibit question; the answer is among the listed vulnerabilities.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
CVE-2022-9876 on the file server
Why it's wrong here
Compensating control in place reduces risk.
✗
CVE-2023-5678 on the web server
Why it's wrong here
Already patched.
✓
CVE-2023-1234 on the critical server
Why this is correct
Unpatched critical vulnerability with high CVSS score.
Related concept
Static NAT maps one inside address to one outside address.
✗
All vulnerabilities pose equal risk
Why it's wrong here
No, risk levels differ.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related CRISC NAT questions on configuration and troubleshooting.
IT Risk Assessment — This question tests IT Risk Assessment — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: CVE-2023-1234 on the critical server — Option A is correct because the critical server has an unpatched remote code execution vulnerability with a CVSS score of 9.8, indicating high exploitability and impact. Option B is wrong because the web server vulnerability is patched, so risk is mitigated. Option C is wrong because the file server vulnerability is medium severity and has compensating controls, reducing risk. Option D is wrong because this is an exhibit question; the answer is among the listed vulnerabilities.
What should I do if I get this CRISC question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related CRISC NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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