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CompTIA CS0-003 (page: 1)

CompTIA CySA+ (CS0-003)

Updated 12-Apr-2026

Page 1 of 61 CS0-003 PDF — 560 Questions

A recent zero-day vulnerability is being actively exploited, requires no user interaction or privilege escalation, and has a significant impact to confidentiality and integrity but not to availability.
Which of the following CVE metrics would be most accurate for this zero-day threat?

  1. CVSS:31/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
  2. CVSS:31/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L
  3. CVSS:31/AV:N/AC:L/PR:N/UI:H/S:U/C:L/I:N/A:H
  4. CVSS:31/AV:L/AC:L/PR:R/UI:R/S:U/C:H/I:L/A:H

Answer(s): A



Which of the following tools would work best to prevent the exposure of PII outside of an organization?

  1. PAM
  2. IDS
  3. PKI
  4. DLP

Answer(s): D



An organization conducted a web application vulnerability assessment against the corporate website, and the following output was observed:


Which of the following tuning recommendations should the security analyst share?

  1. Set an HttpOnly flag to force communication by HTTPS
  2. Block requests without an X-Frame-Options header
  3. Configure an Access-Control-Allow-Origin header to authorized domains
  4. Disable the cross-origin resource sharing header

Answer(s): C



Which of the following items should be included in a vulnerability scan report? (Choose two.)

  1. Lessons learned
  2. Service-level agreement
  3. Playbook
  4. Affected hosts
  5. Risk score
  6. Education plan

Answer(s): D,E



The Chief Executive Officer of an organization recently heard that exploitation of new attacks in the industry was happening approximately 45 days after a patch was released.
Which of the following would best protect this organization?

  1. A mean time to remediate of 30 days
  2. A mean time to detect of 45 days
  3. A mean time to respond of 15 days
  4. Third-party application testing

Answer(s): A



A security analyst recently joined the team and is trying to determine which scripting language is being used in a production script to determine if it is malicious. Given the following script:


Which of the following scripting languages was used in the script?

  1. PowerShell
  2. Ruby
  3. Python
  4. Shell script

Answer(s): A



A company's user accounts have been compromised. Users are also reporting that the company's internal portal is sometimes only accessible through HTTP, other times; it is accessible through HTTPS.
Which of the following most likely describes the observed activity?

  1. There is an issue with the SSL certificate causing port 443 to become unavailable for HTTPS access
  2. An on-path attack is being performed by someone with internal access that forces users into port 80
  3. The web server cannot handle an increasing amount of HTTPS requests so it forwards users to port 80
  4. An error was caused by BGP due to new rules applied over the company's internal routers

Answer(s): B



A security analyst is tasked with prioritizing vulnerabilities for remediation. The relevant company security policies are shown below:
Security Policy 1006: Vulnerability Management
1. The Company shall use the CVSSv3.1 Base Score Metrics (Exploitability and Impact) to prioritize the remediation of security vulnerabilities.
2. In situations where a choice must be made between confidentiality and availability, the Company shall prioritize confidentiality of data over availability of systems and data.
3. The Company shall prioritize patching of publicly available systems and services over patching of internally available system.
According to the security policy, which of the following vulnerabilities should be the highest priority to patch?

  1. Name: THOR.HAMMER -
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Internal System
  2. Name: CAP.SHIELD -
    CVSS 3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    External System Most Voted
  3. Name: LOKI.DAGGER -
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    External System
  4. Name: THANOS.GAUNTLET -
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    Internal System

Answer(s): B



Page 1 of 61

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