23. A vulnerability analyst received a list of system vulnerabilities and needs to evaluate the relevant impact of the exploits on the business. Which of the following represents the least impactful risk, given the CVSS3.1 base scores?

Answer: D

Explanation:

D represents the least impactful risk based on the CVSS3.1 base scores.

Given the provided CVSS3.1 base scores, option D has the lowest base score of 6.5, indicating it represents the least impactful risk when evaluating the vulnerabilities.

A) AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:L - Base Score 6.0

Option A, while having a base score of 6.0, has higher impact metrics for confidentiality (C:H) and integrity (I:H), which suggests that the potential damage from this vulnerability could be more severe compared to option D.

B) AV:N/AC:H/PR:H/UI:N/S:C/H:I:L/A:L - Base Score 7.2

Option B has the highest base score of 7.2 among the choices, indicating a more significant risk. Its combination of impact metrics on confidentiality and integrity suggests a greater potential impact on the business, making it less favorable than option D.

C) AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H - Base Score 6.4

Although option C has a base score of 6.4, it features high impact metrics for confidentiality, integrity, and availability (C:H, I:H, A:H). This implies that the risk associated with option C is still considerable, making it more impactful than option D.

D) AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L - Base Score 6.5

Option D has the lowest base score of 6.5, and its lower impact metrics across confidentiality (C:L), integrity (I:L), and availability (A:L) suggest a reduced risk to the business compared to the other options.

Conclusion

In summary, option D is definitively the least impactful risk based on its lowest CVSS3.1 base score and lower impact metrics. The other options present higher potential risks due to their higher base scores and more severe impact ratings, making them less favorable when evaluating the impact of system vulnerabilities on the business.