The answer is Medium, after considering the compensating controls. While a CVSS base score of 9.0 indicates critical intrinsic severity, the final risk rating must account for compensating controls that reduce the likelihood of exploitation. In this scenario, the strong firewall and two-factor authentication act as layered defenses, forcing an attacker to bypass both network filtering and an additional authentication factor, which significantly lowers the probability of a successful attack. On the CRISC exam, this tests your understanding that risk is a function of likelihood and impact, not just the raw CVSS score—a common trap is to confuse the base score with the residual risk rating. Remember the CRISC mantra: “Score the vulnerability, but rate the risk with controls.” A useful memory tip is to think of CVSS as the “car’s top speed” and compensating controls as the “road conditions and driver skill”—both determine the actual crash risk.
CRISC IT Risk Assessment Practice Question
This CRISC practice question tests your understanding of it risk assessment. Compare every option against the stated constraints before choosing — the best answer satisfies all requirements, not just the most obvious one. 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.
During a risk assessment for a critical financial application, the IT risk manager identifies a vulnerability in the application's authentication module. The exploit would require authenticated access. Which risk rating is most appropriate if the vulnerability has a CVSS base score of 9.0, but the application is behind a strong firewall and requires two-factor authentication?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Medium, after considering the compensating controls
Option A is correct because the CVSS base score of 9.0 reflects the intrinsic severity of the vulnerability, but the final risk rating must incorporate compensating controls. The strong firewall and two-factor authentication (2FA) significantly reduce the likelihood of exploitation, as the attacker would need to bypass both network-level filtering and an additional authentication factor. In CRISC methodology, risk is a function of likelihood and impact; here, the controls lower the likelihood, resulting in a Medium residual risk rating despite the high base score.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Medium, after considering the compensating controls
Why this is correct
Compensating controls reduce the likelihood of exploitation.
Related concept
Read the scenario before looking for a memorised answer.
✗
Low, because the application requires authenticated access
Why it's wrong here
Authenticated access still allows malicious insiders.
✗
High, because CVSS base score is 9.0
Why it's wrong here
CVSS base score does not account for compensating controls.
✗
Very high, due to the criticality of the application
Why it's wrong here
Business criticality alone does not determine risk rating.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates assume a high CVSS base score automatically dictates a High or Very High risk rating, ignoring the CRISC principle that risk must be evaluated after applying compensating controls and environmental modifiers.
Detailed technical explanation
How to think about this question
The CVSS base score of 9.0 typically corresponds to an AV:N/AC:L/Au:S/C:C/I:C/A:C vector (assuming authenticated access is required, Au:S). However, the presence of a strong firewall can modify the Attack Vector (AV) to Adjacent Network (A) or even Physical (P) in the environmental metric, and two-factor authentication increases the Authentication (Au) requirement from Single (S) to Multiple (M). These environmental modifications can reduce the adjusted score significantly, often to the Medium range. In practice, risk assessors should use the CVSS Environmental Score (e.g., via the CVSS calculator) to reflect compensating controls, not just the base score.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
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
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the CRISC exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
IT Risk Assessment — This question tests IT Risk Assessment — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Medium, after considering the compensating controls — Option A is correct because the CVSS base score of 9.0 reflects the intrinsic severity of the vulnerability, but the final risk rating must incorporate compensating controls. The strong firewall and two-factor authentication (2FA) significantly reduce the likelihood of exploitation, as the attacker would need to bypass both network-level filtering and an additional authentication factor. In CRISC methodology, risk is a function of likelihood and impact; here, the controls lower the likelihood, resulting in a Medium residual risk rating despite the high base score.
What should I do if I get this CRISC question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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