CS0-003 Vulnerability Management Practice Question
A security analyst is investigating a containerized environment. A scan using Trivy has identified a critical vulnerability in a container image. The container is running in a Kubernetes cluster with a Pod Security Policy that disallows privileged containers. Which additional concern should the analyst address?
⚠ Common exam trap
CS0-004 often tests the misconception that a Pod Security Policy or non-privileged container automatically neutralizes all vulnerabilities, when in fact it only blocks one specific escalation vector.
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
✓
The analyst should immediately patch the image, but also verify that the Pod Security Policy prevents privilege escalation
A critical vulnerability in a container image remains a real risk even if the container is not privileged, because the vulnerability could still be exploited for data exfiltration, denial of service, or lateral movement within the cluster. The analyst should patch the image and also verify that the Pod Security Policy actually prevents privilege escalation, since misconfigurations or policy gaps could allow an attacker to escalate privileges after exploiting the vulnerability.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The vulnerability is not exploitable due to the Pod Security Policy
Why it's wrong here
A Pod Security Policy restricting privileged containers limits certain escalation paths but does not neutralize every exploitation vector a vulnerability might offer, such as remote code execution against the application itself, data exposure, or denial of service, so claiming the flaw is entirely non-exploitable overstates what this control actually accomplishes.
- ✗
The vulnerability is automatically mitigated because the container is not privileged
Why it's wrong here
Blocking privileged mode reduces the blast radius if an attacker tries to escape the container to the host, but automatic mitigation is too strong a claim since the vulnerability itself can likely still be triggered and exploited within the container's own process and namespace even without elevated container privileges.
- ✗
The analyst should ignore the vulnerability because the container is not privileged
Why it's wrong here
Ignoring a critical vulnerability because privilege escalation is restricted disregards that the flaw could still be leveraged for data theft, service disruption, or lateral movement within the cluster's network, and Kubernetes network policies or RBAC gaps elsewhere could still allow an attacker to pivot from a compromised pod.
- ✓
The analyst should immediately patch the image, but also verify that the Pod Security Policy prevents privilege escalation
Why this is correct
Because the Pod Security Policy reduces but does not eliminate the vulnerability's potential impact, the correct approach layers remediation with verification: patch the base image to remove the underlying flaw while also confirming the policy's privilege-escalation controls are properly enforced, ensuring both the root cause and the compensating control are addressed rather than relying on either alone.
Go deeper
Related to this question
Learn chapter
Security Architecture Review for Analysts
Key term
Policy
A policy is a set of rules or guidelines that defines how an organization manages, secures, and operates its IT systems and services.
Key term
Security
Security in IT is the practice of protecting systems, networks, and data from unauthorized access, damage, or theft.
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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 CompTIA exam blueprint
This CS0-004 practice question is part of Courseiva's free CompTIA 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 CS0-004 exam.