Internal Scan Vulnerability Management

PCI DSS 4.0.1 Requirement 11.3.1.1 requires you to manage internal-scan vulnerabilities that are not rated high-risk or critical by prioritizing and remediating them based on your targeted risk analysis, then performing rescans when needed to verify closure. Operationally, this means defined SLAs, documented triage decisions, tracked remediation to completion, and evidence-ready rescans. ¹

Key takeaways:

• You need a risk-based workflow for “non-high/non-critical” internal findings, tied to your targeted risk analysis. ¹
• Your assessor will look for traceability: finding → risk decision → ticket/change → fix → rescan/validation evidence.
• “Rescans as needed” must be a repeatable rule, not an ad hoc habit. ¹

“Internal scan vulnerability management” in PCI DSS is easy to misread as “run scanners and patch things.” Requirement 11.3.1.1 is narrower and more operational: once you have internal vulnerability scan results, you must manage the vulnerabilities that fall below your high-risk/critical threshold using your targeted risk analysis and rescan when needed. ¹

This requirement often fails in practice for two reasons. First, teams treat medium/low findings as backlog without an explicit risk decision tied to PCI-defined risk ranking rules and the organization’s targeted risk analysis. Second, teams close tickets without validation, or they validate informally without retaining scan evidence that ties to the original finding.

This page is written for a Compliance Officer, CCO, or GRC lead who needs to operationalize the requirement quickly: define the decision points, set minimum evidence, and make the workflow audit-ready. You’ll get a step-by-step operating model, the artifacts to retain, common audit questions, typical failure modes, and an execution plan you can run with security and IT owners.

Regulatory text

PCI DSS 4.0.1 Requirement 11.3.1.1 (excerpt): “All other applicable vulnerabilities (those not ranked as high-risk or critical per the entity's vulnerability risk rankings defined at Requirement 6.3.1) are managed as follows: addressed based on the risk defined in the entity's targeted risk analysis, and rescans are conducted as needed.” ¹

What the operator must do (plain reading):

1. Identify the population: internal scan vulnerabilities that are applicable and not ranked high-risk or critical under your vulnerability risk ranking method (which is defined elsewhere, referenced here). ¹
2. Apply targeted risk analysis: decide how quickly and how you will address these vulnerabilities using the risk defined in your targeted risk analysis (TRA). ¹
3. Rescan when needed: run rescans as required to confirm remediation (or confirm compensating conditions where you accept risk), and retain evidence. ¹

Plain-English interpretation (what this means in real operations)

Requirement 11.3.1.1 is your “everything else” lane for internal vulnerability findings: mediums, lows, informational items, and edge cases that aren’t high-risk/critical under your defined ranking system. You still need governance and closure discipline.

A practical interpretation that passes assessment:

• Every applicable internal finding gets a recorded disposition (remediate, mitigate, accept risk temporarily, or determine not applicable/false positive).
• The disposition timing and approvals match your targeted risk analysis. If your TRA says a specific class of system is more exposed (for example, CDE-adjacent admin networks), your remediation expectations must reflect that risk. ¹
• You can prove closure. “Fixed” means validated, typically by rescan results tied to the original finding, plus change/ticket evidence.

Who it applies to

Entity scope: organizations that store, process, or transmit account data, and service providers whose people, processes, or systems can affect the security of the cardholder data environment (CDE). ¹

Operational context (where it shows up):

• Internal vulnerability scanning across the CDE and connected systems in-scope for PCI.
• Central vulnerability management teams, infrastructure/endpoint owners, cloud platform teams, and application owners who receive internal scan findings.
• GRC/compliance teams that must demonstrate risk-based prioritization and evidence of remediation and rescanning during an assessment. ²

Third parties: if a third party manages in-scope systems (MSP, hosting provider, managed security provider), you still need to ensure their workflow produces the evidence you must show to your assessor.

What you actually need to do (step-by-step)

1) Define your “non-high/non-critical” lane and intake rules

Create a short internal standard (one to two pages) that answers:

• What counts as an “internal scan finding” in your environment (scanner sources, authenticated vs. unauthenticated, agent-based results).
• What makes a vulnerability “applicable” (in-scope asset, relevant software present, not already mitigated by configuration, not a duplicate).
• How you determine whether the finding is high-risk/critical vs. “all other applicable.” This must align with your vulnerability risk rankings referenced by the requirement. ¹

Operator tip: define who can mark something “not applicable/false positive” and require evidence (package version output, config screenshot, command output, or vendor advisory reference).

2) Link remediation expectations to your targeted risk analysis (TRA)

Translate the TRA into working rules your teams can execute:

• Risk factors that change priority (asset role in CDE, exposure paths, privilege required, exploitability context, compensating controls).
• What “addressed based on risk” means in practice: patch, configuration change, remove software, segment network, restrict access, or documented risk acceptance with compensating actions. ¹

Deliverable: a decision matrix that maps vulnerability severity category + asset criticality + exposure context to a target remediation approach and expected validation method.

3) Put every finding into a tracking system with required fields

Whether you use Jira, ServiceNow, or another ticketing system, enforce minimum fields:

• Asset identifier and owner
• Finding identifier (plugin/CVE/signature) and scan date
• Risk rank (high/critical vs. “other applicable”)
• TRA-based priority rationale (short text)
• Planned fix approach and required approvals (change record link if applicable)
• Target validation method (rescan, config attestation, package query output)

This is where teams usually fail: they store scan PDFs but can’t show end-to-end traceability.

4) Remediate or formally disposition (don’t let it rot in backlog)

For each “other applicable” finding, require one of:

• Remediated: patch/config change applied, with change/ticket evidence.
• Mitigated: compensating technical control documented (for example, service disabled, ACL tightened) with evidence.
• Risk accepted (time-bound in your process): documented business rationale, approvals, and conditions (monitoring, segmentation, or operational constraint).
• Not applicable / false positive: evidence attached and approved.

The requirement language expects vulnerabilities to be “addressed,” which in assessment practice means you can demonstrate an intentional, risk-based outcome and not silent deferral. ¹

5) Rescans: define “as needed” as a rule you can defend

“Rescans are conducted as needed” requires a consistent trigger set. Examples of defendable triggers:

• After remediation changes are implemented on an asset class or subnet
• After a patch cycle for affected packages
• When the ticket status moves to “ready for validation”
• When risk acceptance expires or compensating control changes

Operationalize this with:

• A rescan request workflow (who requests, who runs, expected turnaround)
• A method to tie the rescan output to the original ticket/finding (scan ID, timestamp, asset list) ¹

6) Build an assessor-ready evidence package (ongoing, not at year-end)

For each assessment period, maintain:

• Scan outputs (raw exports preferred) and coverage notes for in-scope ranges
• The full ticket trail with dispositions and approvals
• Validation artifacts (rescan results, configuration proof, package versions)
• Exceptions/risk acceptances with TRA alignment

If you want this to stay lightweight, Daydream can act as the system of record for evidence collection: you can map scan outputs and remediation tickets to the requirement, then produce a single exportable evidence set for your QSA without reassembling it from scattered tools.

Required evidence and artifacts to retain

Use this as your minimum checklist:

• Vulnerability management procedure for internal findings that explicitly covers “all other applicable vulnerabilities” and references your targeted risk analysis and rescan triggers. ¹
• Targeted risk analysis output (or the specific TRA section) that drives prioritization rules. ¹
• Internal scan results (exports or reports) showing findings, dates, and affected assets.
• Ticket evidence for a sample of findings: assignment, prioritization rationale, remediation actions, approvals, and closure notes.
• Change management links for fixes that required formal change control.
• Rescan/validation proof tied to the ticket (follow-up scan output, “fixed” status, or other accepted validation evidence). ¹
• Exception/risk acceptance records with approval and expiry conditions.

Common exam/audit questions and hangups

Assessors and internal auditors tend to probe the same weak spots:

1. “Show me how you decide what is ‘high/critical’ vs. ‘all other applicable.’” If your ranking method is inconsistent across tools, you’ll struggle to defend scope and priority. ¹

2. “Where is the targeted risk analysis used in day-to-day triage?” They will reject a TRA that exists only as a PDF with no operational linkage. ¹

3. “Prove you rescanned.” Screenshots of “ticket closed” are not the same as scan evidence tied to the specific finding and asset. ¹

4. “What happens to medium/low findings on shared infrastructure?” Cloud platforms and container hosts often create ownership confusion; auditors want a named accountable owner.

5. “How do you handle exceptions?” Risk acceptance is allowed as a governance action in most organizations, but you must show the decision is risk-based and controlled, not a loophole.

Frequent implementation mistakes (and how to avoid them)

• Mistake: treating non-critical findings as optional. Fix: require a documented disposition for every applicable finding, even if the action is “accept temporarily with controls,” tied to the TRA. ¹

• Mistake: no consistent rescan triggers. Fix: publish rescan triggers and embed them in ticket workflow statuses (“Ready for rescan” gate). ¹

• Mistake: evidence lives in too many places. Fix: define an evidence register and require ticket links to scan IDs and exports; consider Daydream to centralize evidence mapping and exports for assessments.

• Mistake: “false positive” without proof. Fix: require repeatable proof types (command output, package versions, config state) and an approver role.

Enforcement context and risk implications

No public enforcement cases were provided in the source catalog for this requirement, so you should treat enforcement risk as indirect: failure commonly shows up as a PCI assessment finding, increased remediation burden late in the audit cycle, and expanded sampling when assessors lose confidence in your process. The operational risk is straightforward: unresolved internal weaknesses can remain in production if they never get scheduled or validated. ¹

Practical execution plan (30/60/90)

Exact timing depends on your environment, but you can execute in three phases without turning this into a multi-quarter program.

First phase (immediate): make the workflow defensible

• Name a single owner for internal vulnerability management evidence (often Security GRC + Vulnerability Management).
• Document the “other applicable vulnerabilities” workflow and required ticket fields.
• Define rescan triggers and validation rules. ¹
• Pick a single place to store evidence pointers (ticket links + scan exports index).

Second phase (near-term): connect the targeted risk analysis to operations

• Convert TRA outputs into a triage decision matrix used in tickets. ¹
• Implement QA checks: a weekly review of closures without rescan evidence; a weekly review of “not applicable” dispositions without proof.
• Run a pilot sampling pack exactly like an assessor request: select a set of non-high/non-critical findings and produce end-to-end evidence in one folder/export.

Third phase (ongoing): sustain and simplify evidence

• Automate scan-to-ticket creation where possible.
• Standardize asset ownership (CMDB tags, cloud account owners) so findings route correctly.
• Use Daydream to map artifacts to Requirement 11.3.1.1 and keep an always-ready evidence package for QSA testing.

Frequently Asked Questions

Does Requirement 11.3.1.1 apply even if the vulnerability is “medium” or “low”?

Yes, if it is an applicable vulnerability from internal scanning and it is not ranked high-risk or critical, it falls into this requirement’s “all other applicable vulnerabilities” bucket and must be addressed based on your targeted risk analysis. ¹

What counts as “rescans are conducted as needed”?

You need defined triggers that cause a rescan to verify remediation or mitigation, and you must retain evidence that the rescan ties back to the original finding and asset. The key is consistency and traceability, not ad hoc rescanning. ¹

Can we close a ticket without a rescan if we have change records?

Change records show intent and execution, but assessors commonly expect validation that the vulnerability no longer appears. If you don’t rescan, retain alternative validation evidence that directly proves the condition is resolved and document why a rescan was not required in that case. ¹

How should we handle false positives?

Require evidence and an approver. Keep the proof attached to the ticket (for example, package version output or configuration state) and make sure the finding is still tracked as “addressed” via the disposition. ¹

What’s the minimum evidence a QSA will ask for?

Expect to show scan results, tickets with risk-based prioritization tied to your targeted risk analysis, and validation evidence (often rescans) that demonstrate closure. Keep the linkage tight: scan finding identifiers and dates must match the remediation record. ¹

We outsource infrastructure to a third party. Who is responsible?

You remain accountable for PCI evidence for in-scope systems. Contractually require the third party to provide scan outputs (or attestations where appropriate), remediation records, and rescan/validation evidence in a format your team can retain for assessment. ²

What you actually need to do

Use the cited implementation guidance when translating the requirement into day-to-day operating steps. ³

Footnotes

1. PCI DSS v4.0.1 Requirement 11.3.1.1

2. PCI DSS v4.0.1

3. Just Published: PCI DSS v4.0.1