NIST 800-53 r5 · Controls catalogue · Family SC
SC-41Port and I/O Device Access
{{ insert: param, sc-41_odp.02 }} disable or remove {{ insert: param, sc-41_odp.01 }} on the following systems or system components: {{ insert: param, sc-41_odp.03 }}.
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 (5)
Weaknesses this control addresses (8)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-284 | Improper Access Control | 6,900+ | Disabling or removing ports and I/O devices directly enforces hardware-level access control by eliminating entry points. |
CWE-923 | Improper Restriction of Communication Channel to Intended Endpoints | 69 | Restricts communication channels to only intended endpoints by eliminating unnecessary ports and devices. |
CWE-300 | Channel Accessible by Non-Endpoint | 55 | Eliminates channels that could be accessed by non-endpoint actors through disabled ports and devices. |
CWE-420 | Unprotected Alternate Channel | 39 | Removes or disables unprotected alternate I/O channels that could otherwise be used to bypass primary controls. |
CWE-1191 | On-Chip Debug and Test Interface With Improper Access Control | 22 | Directly mitigates exposure of on-chip debug and test interfaces by disabling or removing them. |
CWE-1244 | Internal Asset Exposed to Unsafe Debug Access Level or State | 13 | Prevents internal assets from being exposed through debug or test access levels by removing those interfaces. |
CWE-1263 | Improper Physical Access Control | 13 | Reduces physical access attack surface by disabling physical ports and I/O devices. |
CWE-1299 | Missing Protection Mechanism for Alternate Hardware Interface | 11 | Provides protection for alternate hardware interfaces by disabling them when not required. |
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. | ||||