NIST 800-53 r5 · Controls catalogue · Family MP
MP-3Media Marking
Mark system media indicating the distribution limitations, handling caveats, and applicable security markings (if any) of the information; and Exempt {{ insert: param, mp-03_odp.01 }} from marking if the media remain within {{ insert: param, mp-03_odp.02 }}.
Last updated: 22 August 2026 07:11 UTC
Implementations targeting this control (0)
- No implementations targeting this control yet.
ATT&CK techniques this control mitigates (0)
- No ATT&CK techniques mapped to this control yet.
Weaknesses this control addresses (4)AI-assisted
CWEs ranked by how often they appear in real CVEs. The rationale describes how this control reduces exploitability of each weakness class.
| CWE | Name | CVEs | Why this control addresses it |
|---|---|---|---|
CWE-200 | Exposure of Sensitive Information to an Unauthorized Actor | 11,000+ | Media marking ensures sensitive information on removable or system media is handled according to its classification, reducing the chance of inadvertent exposure to unauthorized actors. |
CWE-284 | Improper Access Control | 6,900+ | Markings provide explicit guidance on distribution limits and handling caveats, directly supporting enforcement of access controls for physical and logical media. |
CWE-285 | Improper Authorization | 1,500+ | Security markings on media enable correct authorization decisions by indicating required protections before media is accessed, transferred, or reused. |
CWE-668 | Exposure of Resource to Wrong Sphere | 800+ | Marking prevents media containing sensitive data from being moved or accessed within an inappropriate security sphere by making sensitivity visible to handlers. |
Top CVEs where this control is the strongest mitigation
| CVE | Risk | CVSS | EPSS | Match |
|---|---|---|---|---|
| No CVEs annotated to this control yet — the per-CVE backfill is in progress. | ||||