Vulnerability Remediation for SOC 2

What this control should accomplish

Every actionable vulnerability has an accountable decision based on technical severity and business exposure, ending in verified remediation or a documented, time-bound exception.

How to implement Vulnerability Remediation

1. 1

   Normalize the finding

   Record the affected asset, weakness, source, first-seen date, current status, exposure, business owner, and links to duplicate or related findings.

   You should end up with: Authoritative vulnerability record

2. 2

   Prioritize in context

   Consider exploitability, internet exposure, privilege, data sensitivity, service criticality, compensating safeguards, and customer impact alongside scanner severity.

   You should end up with: Risk-ranked finding with rationale

3. 3

   Assign action and timing

   Give each finding an accountable owner, target date, planned treatment, and escalation path when progress stalls.

   You should end up with: Owned remediation ticket and due date

4. 4

   Validate the fix

   Rescan, retest, or inspect the changed configuration and tie the successful result to the original finding before closure.

   You should end up with: Closure evidence linked to the finding

5. 5

   Control exceptions

   Document residual risk, compensating safeguards, approver, expiry, and review conditions for accepted or deferred findings.

   You should end up with: Time-bound exception or risk decision

6. 6

   Review program performance

   Track overdue work, reopened findings, recurring weaknesses, unsupported assets, and aging by service, then assign systemic improvements.

   You should end up with: Remediation review and improvement actions

Evidence to keep, and what it should prove

Build the evidence set in three layers: what defines the control, who approved or reviewed it, and what proves it operated. Collect operating records when the work happens so they remain dated, attributable, correctly scoped, and traceable to the underlying activity.

Before sharing, remove unrelated personal or customer data, never expose passwords, tokens, or secret values, preserve enough source context to authenticate the record, and use the secure exchange approved for the engagement.

Which records should you prepare for the audit?

How an auditor may test this control

Use this checklist to prepare for procedures an auditor may perform. The exact steps and sample selection depend on your engagement scope and the service auditor's professional judgment.

• Confirm the intended control outcome

  Determine whether the control is designed to achieve this result: Every actionable vulnerability has an accountable decision based on technical severity and business exposure, ending in verified remediation or a documented, time-bound exception.

• Confirm ownership and operating cadence

  Compare the documented owner with the intended role (Security Operations / Engineering / Infrastructure), then compare dated records with the stated cadence: Continuous/ongoing; periodic review by risk.

• Establish the complete audit record set

  Reconcile full-period scanner finding exports, including findings open on the first day and discovered later, to the vulnerability and issue trackers using stable finding and asset IDs; retain duplicate mappings and verify every closed, suppressed, or accepted item has an attributable decision and supporting evidence.

• Prepare the as-of-date evidence for a Type 1 engagement

  The current prioritization and treatment process, complete open-finding inventory, current ownership and exception state, and recent examples of verified remediation at the review date.

• Prepare period evidence for a Type 2 engagement

  Every actionable vulnerability finding newly detected during the review period or still open at its start, including duplicates linked to a retained parent, remediated and verified items, reopened items, false-positive decisions, deferred work, and risk acceptances reviewed or expiring during the period.

• Inspect the approval / review evidence

  Records showing that an accountable person reviewed, approved, challenged, or accepted the work.

  • Inspect risk acceptance records

    For each selected record, confirm it demonstrates Deferred or accepted exposure has asset-specific rationale, compensating safeguards, accountable approval, expiry, and a planned review.

    • Finding and asset
    • Residual risk rationale
    • Compensating safeguards
    • Approver
    • Approval and expiry dates
    • Review condition

• Inspect the operating / technical evidence

  Dated proof that the control actually ran, such as tickets, logs, settings, exports, reports, and test results.

  • Inspect Remediation tickets

    For each selected record, confirm it demonstrates Actionable findings have traceable ownership, contextual priority, treatment, due date, status history, and closure evidence.

    • Finding and asset ID
    • Owner
    • Risk rationale
    • Opened and due dates
    • Status history
    • Closure or exception link

  • Inspect SLA reports

    For each selected record, confirm it demonstrates The team measures finding age and treatment performance against its own documented remediation targets without hiding overdue or reopened work.

    • Covered period
    • Target definition
    • Finding population
    • Original detection and due dates
    • Current status
    • Overdue explanation

  • Inspect rescan evidence

    For each selected record, confirm it demonstrates The original weakness is no longer detected on the identified asset after remediation, or remaining exposure is explicitly documented.

    • Original finding ID
    • Asset ID
    • Rescan ID and time
    • Scanner or method
    • Result
    • Verifier

  • Inspect patch evidence

    For each selected record, confirm it demonstrates The intended update or configuration change reached the affected asset and can be tied to an authorized remediation action.

    • Asset
    • Patch or change identifier
    • Prior and resulting version
    • Applied time
    • Deployment result
    • Ticket link

• Trace the control from design to operation

  Use the categories that apply to this control: connect any policy or design artifact to its approval or review record, then trace a selected operating record through execution, result, and any exception or remediation.

Common implementation and evidence gaps

• Tickets are closed when a patch is requested rather than when the affected asset is verified.
• Due dates are repeatedly moved, erasing the true age of the finding.
• Risk acceptance covers a broad class of findings without asset-specific context or expiry.
• Findings lose their history when scanner identifiers change or duplicate records are merged.
• Scanner severity drives priority without considering exposure or service criticality.

Before you call this control ready

• Can a closed finding be tied to a successful rescan or documented validation?
• Do overdue findings retain their original detection and due dates?
• Can every open high-risk item be tied to a current owner and treatment decision?
• Are active exceptions approaching expiry visible to their approvers?
• Does trend reporting reveal recurring root causes rather than only ticket counts?

Trust Services Criteria references

These identifiers help you navigate related Trust Services Criteria. They do not reproduce the criteria or prove that this control fully addresses them in your environment.

• CC4.2
• CC6.8
• CC7.1
• CC7.2

Confirm final scope, mappings, and testing expectations with your service auditor. SOC 2® is an AICPA trademark; GreenHat Security is not affiliated with or endorsed by AICPA.

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