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.