AC-6(2) Least privilege | non-privileged access for non-security functions
What the standard requires
Require that users of system accounts (or roles) with access to [security functions or security-relevant information] use non-privileged accounts or roles, when accessing nonsecurity functions.
Quoted verbatim from NIST SP 800-53 Rev 5 (OSCAL catalog), which is in the public domain.
Cross-framework mappings
No cross-framework mapping is seeded for this control. That is stated rather than filled in: a mapping nobody authored is worse than a gap you can see.
Track AC-6(2) with evidence behind it
In CMDash this control is a row with an owner, a status, uploaded evidence kept with its full history, and an export an assessor can read.