CMMC 3.14.1 (Flaw Remediation): Evidence Examples & What Assessors Actually Check

    Control: NIST SP 800-171 Rev. 2 §3.14.1 · CMMC Practice: SI.L2-3.14.1 · Updated June 2026

    Plain-English answer

    3.14.1 requires you to identify, report, and correct system flaws in a timely manner. The word that decides it is timely: you must define the time frames for each step — identify, report, correct — and then show you meet them. This is your patch and remediation program with real SLAs, fed by your scanning (3.11.2).

    Who this applies to

    Every organization seeking CMMC Level 2 for a CUI environment.

    Why it matters

    Most breaches exploit known, unpatched flaws. Finding them isn't enough — closing them on a defined clock is what reduces risk. It carries a weighted SPRS deduction if unmet (verify the exact value against the DoD Assessment Methodology).

    Control lineage

    • CMMC Practice: SI.L2-3.14.1
    • NIST 800-171 Rev. 2: §3.14.1 — identify, report, and correct system flaws in a timely manner.
    • NIST 800-171A objectives: [a] the time within which to identify system flaws is specified; [b] system flaws are identified within the specified time frame; [c] the time within which to report system flaws is specified; [d] system flaws are reported within the specified time frame; [e] the time within which to correct system flaws is specified; [f] system flaws are corrected within the specified time frame.

    What the assessor will EXAMINE

    • The patch/flaw-remediation policy that specifies time frames to identify, report, and correct (e.g., by severity).
    • Patch-management reports/dashboards showing flaws found and remediated against those time frames.
    • The link from scan findings (3.11.2) into remediation tracking/tickets.
    • SSP narrative for 3.14.1.

    What the assessor will INTERVIEW & TEST

    • Interview: "What are your time frames to identify, report, and correct flaws, and how do you know you meet them?" — point to the policy + remediation metrics.
    • Test: Pick a recent critical flaw and trace it from discovery to patch, checking it closed within the SLA.
    • Test: Review patch compliance across in-scope assets for overdue items.

    Evidence examples (produce these)

    • Patch/flaw-remediation policy with defined time frames by severity (identify / report / correct).
    • Patch-management compliance report showing remediation within SLA.
    • A worked example: a flaw from scan finding → ticket → patched, with dates inside the SLA.
    • Evidence that overdue items flow to the POA&M where needed.
    • SSP section 3.14.1 referencing the above.

    Common failure patterns

    • Patching happens but no time frames are specified — objectives [a]/[c]/[e] fail even if systems are current.
    • Time frames defined on paper but routinely missed — objectives [b]/[d]/[f] fail.
    • Scan findings never become remediation actions — the loop from 3.11.2 to 3.14.1 is broken.
    • Servers patched, but workstations or appliances drift out of compliance.

    SPRS impact & POA&M

    SPRS: 3.14.1 carries a weighted deduction (verify the exact value). POA&M: confirm 3.14.1's POA&M eligibility against current CMMC rules before assuming it can be deferred.

    Assessor-ready summary

    You're good on 3.14.1 when time frames to identify, report, and correct flaws are defined by severity; remediation metrics show you meet them; scan findings flow into tracked, closed fixes; overdue items hit the POA&M; and the SSP matches the practice.

    Can you prove critical patches close inside your SLA? Get a flaw-remediation evidence map →

    Related: 3.11.2 Vulnerability Scanning · 3.14.6 System Monitoring · All control pages

    Athena prepares organizations for CMMC Level 2; certification rests with C3PAOs/DIBCAC. Verify all control facts against NIST SP 800-171 Rev. 2, NIST SP 800-171A, and current CMMC rules.