Comprehensive and Detailed Explanation From Exact Extract:
According to ISO/IEC 27005:2018 (which supports ISO/IEC 27035 in risk management and threat assessment processes), vulnerabilities that are not currently associated with known threats do not necessarily need immediate remediation or technical control measures. However, they cannot be ignored entirely either.
Such vulnerabilities may not pose an active risk at the present time, but that can change quickly if a new threat emerges that can exploit them. Therefore, these vulnerabilities should be documented, assessed in context, and monitored over time. This process ensures that if the threat landscape evolves, the organization can respond proactively.
The standard emphasizes a risk-based approach, which includes:
* Analyzing vulnerabilities in relation to assets and threat likelihood
* Monitoring the environment for changes that may introduce new threats
* Avoiding unnecessary or unjustified resource expenditure on low-risk issues
Option A is incorrect because it suggests addressing all vulnerabilities without considering risk context. Option B is risky and contradicts ISO best practices, which emphasize continuous risk monitoring.
Reference Extracts:
* ISO/IEC 27005:2018, Clause 8.2.2: “Vulnerabilities without known threats may not require treatment immediately but should be monitored regularly.”
* ISO/IEC 27001:2022, Annex A, Control A.8.8 – “Management of technical vulnerabilities should be risk-based and responsive to changes.”
Therefore, the correct answer is C: They may not require controls but should be analyzed and monitored for changes.
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