STIG to NIST 800-53 Control Mapper
Paste a STIG rule, a CCI, or an entire checklist. Get the NIST SP 800-53 Rev 5 controls each finding maps to — with the full trace showing exactly how it got there.
Map a finding to its controls
Works on rule IDs (V-230468), STIG IDs (RHEL-08-030601), CCIs (CCI-000169), keywords, or a whole .ckl pasted straight in.
This is the easy half. Resolving a finding to a control is a lookup. Deciding whether your evidence actually satisfies that control — and defending it to an assessor — is the work. That is what we do.
Why this tool shows its work
Every hop is a lookup, not a guess
A STIG rule already carries one or more Control Correlation Identifiers. DISA publishes the CCI List; NIST publishes the 800-53 catalog. So the path from a scan finding to a security control is a deterministic chain — rule, to CCI, to control — and it can be reproduced by anyone with the same public files.
That is the whole design. Nothing here is inferred and no language model is involved. If the tool tells you a finding maps to AU-12, it will also tell you which CCI carried it there, so you can check the claim rather than trust it.
And where the published crosswalk falls down, it says so
Two things a mapper should be honest about, and most are not.
Some rules resolve only to CM-6, Configuration Settings, through CCI-000366 — DISA’s general catch-all. That answer is technically correct and tells you almost nothing about the actual risk. When it happens, this tool flags it instead of presenting it as a precise mapping.
And a share of CCIs carry no Rev 5 reference at all, only Rev 4. The renumbering between revisions is not always cosmetic, so those are flagged too, rather than silently forwarded into a Rev 5 report where a wrong control would be invisible.
What this tool is not
It resolves the published crosswalk. It does not assess you, it does not judge whether a control is satisfied, and it is not evidence of compliance. Mapping a finding to a control is the easy half — a lookup. Deciding whether your implementation actually satisfies that control, writing the evidence down, and defending it to an assessor is the hard half, and no tool does it for you.
We do this for a living
BrandShyp took its own systems through a 110-requirement NIST SP 800-171 self-assessment, built the automation that generates the SSP and POA&M from a machine-readable control store, stood up a FIPS-mode isolated enclave for CUI, and affirmed a CMMC Level 2 (Self) posture in SPRS. We are the same kind of small defense-adjacent firm we work with, and we have run the process end to end on ourselves.
Related free tools
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CMMC Fit Check
Two minutes to find out which CMMC level applies to you — and, honestly, whether it applies at all.