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ITSP.10.17198
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98 controls

03.14.01Flaw remediationITSP.10.171System and information integrity

Official Requirement

A. Identify, report, and correct system flaws. B. Install security-relevant software and firmware updates within [Assignment: organization-defined time period] of the release of the updates.

Source: Canadian Centre for Cyber Security ITSP.10.171 (2025), adapted from NIST SP 800-171 Rev. 3

In Plain English

Your organization must have a process to identify, report, and fix system flaws (bugs, misconfigurations, vulnerabilities). Security patches and firmware updates must be installed within defined timeframes after release -- not just whenever it is convenient.

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The Trust Services Criteria referenced in this tool are published by the American Institute of Certified Public Accountants (AICPA) and incorporate principles from the Committee of Sponsoring Organizations of the Treadway Commission (COSO). Criteria descriptions are reproduced for reference purposes. All implementation guidance, evidence recommendations, and control language are original work by Truvo Cyber. ISO 27001 and ISO 42001 are standards published by the International Organization for Standardization (ISO). Framework and standard names are the property of their respective owners. This tool is not affiliated with, endorsed by, or certified by AICPA, COSO, or ISO.

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On-premises implementation and evidence

Flaw identification and patch management

Implementation steps

  1. Document a patch management policy defining how flaws are identified, reported, and remediated with defined timelines
  2. Use centralized patch management tools to deploy OS and application patches across the environment
  3. Prioritize patches based on CVSS severity and define remediation timelines for each severity level
  4. Verify successful patch application through scanning or agent reporting and address any failures promptly

Tools / systems

Evidence artifacts

Evidence frequency: Continuous patching; monthly patch compliance reporting; per-event emergency patching