ISC2 CC Security Principles Practice Question
A junior analyst reports that an attacker exploited an unpatched web server to steal customer data. The analyst labels the missing patch the 'risk'. According to standard risk terminology, how should the missing patch be classified?
⚠ Common exam trap
The trap here is collapsing vulnerability, threat, and risk into one label, when the unpatched server is specifically the weakness that a threat exploits to produce risk.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
As the vulnerability, because it is a weakness an attacker can exploit
In standard risk terminology, a vulnerability is a weakness that a threat can exploit, and the unpatched web server fits that definition precisely. Risk is the combination of the likelihood that a threat exploits a vulnerability and the resulting impact, while the threat is the actor or circumstance capable of causing harm. Naming the missing patch the vulnerability keeps cause, actor, and consequence distinct for remediation.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
As the impact, because data was stolen from the server
Why it's wrong here
Impact is the magnitude of harm resulting from an event, such as financial loss, regulatory penalty, or reputational damage from the data theft. The missing patch existed before any loss occurred and is the weakness that made the loss possible. Labelling it the impact would confuse the cause with the consequence and distort risk calculations.
- ✗
As the risk, because it is the condition that led to the loss
Why it's wrong here
Risk is the combination of the probability of an event and its impact, not the underlying condition itself. The missing patch contributes to the likelihood that a threat succeeds, but calling it the risk conflates a weakness with the potential for loss. Standard models separate the weakness, the actor, and the resulting risk so each can be managed with the appropriate control.
- ✗
As the threat, because it enabled the compromise
Why it's wrong here
A threat is any circumstance or actor with the potential to cause harm, such as an attacker or malware. The missing patch did not act on its own; it is a condition the attacker took advantage of. Treating it as the threat would misdirect remediation toward the patch itself rather than toward the actor and the exposure that the patch represents.
- ✓
As the vulnerability, because it is a weakness an attacker can exploit
Why this is correct
A vulnerability is a weakness in a system, process, or control that a threat can exploit to cause harm. An unpatched web server is a textbook vulnerability: it is a defect in the environment, not an actor and not a measure of loss. Classifying it correctly lets the organisation prioritise patching and track the exposure until it is remediated.
Go deeper
Related to this question
Learn chapter
Risk Management and Security Controls
Key term
Standard
A standard is an agreed-upon set of rules, guidelines, or specifications that ensure consistency, compatibility, and quality across IT products, services, and processes.
Key term
Impact
Impact is the measure of the potential damage or harm that a risk event could cause to an organization's assets, operations, or reputation.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official ISC2 exam blueprint
This CC practice question is part of Courseiva's free ISC2 certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CC exam.