NIST 800-53 r5 · Controls catalogue · Family SC
SC-49Hardware-enforced Separation and Policy Enforcement
Implement hardware-enforced separation and policy enforcement mechanisms between {{ insert: param, sc-49_odp }}.
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 (6)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+ | Hardware-enforced separation directly implements strong access control boundaries that software alone cannot bypass. |
CWE-269 | Improper Privilege Management | 3,400+ | Hardware policy enforcement prevents improper privilege assignment or escalation across separated execution domains. |
CWE-732 | Incorrect Permission Assignment for Critical Resource | 1,900+ | Hardware mechanisms enforce correct permission assignments on critical resources that would otherwise be modifiable by software. |
CWE-693 | Protection Mechanism Failure | 700+ | Hardware enforcement reduces the likelihood that protection mechanisms can be bypassed or fail due to software flaws. |
CWE-250 | Execution with Unnecessary Privileges | 300+ | Mandatory hardware separation makes it harder to run code with unnecessary privileges by isolating privilege domains. |
CWE-653 | Improper Isolation or Compartmentalization | 73 | The control explicitly provides hardware-backed isolation and compartmentalization between domains or components. |
Top CVEs where this control is the strongest mitigation
| CVE | Risk | CVSS | EPSS | Match |
|---|---|---|---|---|
CVE-2026-5892 UPD | 4.8 | 6.6 | 0.0017 | good |
CVE-2023-38575 UPD | 4.3 | 5.5 | 0.0027 | good |
CVE-2023-42667 UPD | 5.4 | 7.8 | 0.0024 | good |
CVE-2023-49141 UPD | 5.4 | 7.8 | 0.0029 | good |
CVE-2023-31325 UPD | 4.9 | 7.2 | 0.0014 | good |
CVE-2025-54514 UPD | 3.5 | 4.8 | 0.0010 | good |
CVE-2024-36332 UPD | 3.5 | 6.8 | 0.0010 | good |
CVE-2025-54518 UPD | 5.2 | 7.0 | 0.0029 | good |