Cyber Posture

NIST 800-53 r5 · Controls catalogue · Family SC

SC-4Information in Shared System Resources

Prevent unauthorized and unintended information transfer via shared system resources.

Last updated: 09 May 2026 03:25 UTC

Implementations targeting this control (0)

ATT&CK techniques this control mitigates (29)

Weaknesses this control addresses (5)AI

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-404Improper Resource Shutdown or Release737Requires proper shutdown/release procedures that include overwriting or isolating data to block unintended transfer via reused system objects.
CWE-665Improper Initialization416Ensures shared resources are explicitly initialized or cleared on allocation, preventing exposure of prior contents to new users or processes.
CWE-459Incomplete Cleanup215Mandates complete sanitization during cleanup so that shared resources (memory, caches, buffers) do not retain data across subjects.
CWE-226Sensitive Information in Resource Not Removed Before Reuse30Directly requires removal of sensitive data from resources before reuse or reallocation to another subject, eliminating residual information transfer.
CWE-244Improper Clearing of Heap Memory Before Release ('Heap Inspection')19Forces clearing of heap memory contents prior to release, preventing subsequent processes from inspecting prior sensitive data.

Top CVEs where this control is the strongest mitigation

CVE Risk CVSS EPSS Match
CVE-2025-242412.09.80.0057good
CVE-2025-304612.09.80.0037good
CVE-2025-342062.09.80.0016good
CVE-2025-251761.89.10.0005good
CVE-2024-99501.77.80.0177good
CVE-2026-320911.78.40.0004good
CVE-2026-298721.68.20.0007good
CVE-2025-18011.68.10.0011good
CVE-2024-469751.67.90.0002good
CVE-2026-321601.67.80.0004good
CVE-2026-321591.67.80.0004good
CVE-2026-279271.67.80.0004good
CVE-2026-209301.67.80.0004good
CVE-2026-221631.67.80.0001good
CVE-2026-321641.67.80.0004good
CVE-2026-208741.67.80.0003good
CVE-2026-208731.67.80.0003good
CVE-2026-57951.57.40.0002good
CVE-2024-125771.57.30.0003good
CVE-2026-356031.57.30.0001good
CVE-2024-453391.47.10.0007good
CVE-2024-564361.15.50.0007good
CVE-2025-60710 KEV5.37.80.2972good
CVE-2025-62215 KEV3.57.00.0237good
CVE-2026-20805 KEV3.35.50.0327good

Other controls in family SC

SC-1 SC-10 SC-11 SC-12 SC-13 SC-14 SC-15 SC-16 SC-17 SC-18 SC-19 SC-2 SC-20 SC-21 SC-22 SC-23 SC-24 SC-25 SC-26 SC-27 SC-28 SC-29 SC-3 SC-30 SC-31 SC-32 SC-33 SC-34 SC-35 SC-36 SC-37 SC-38 SC-39 SC-40 SC-41 SC-42 SC-43 SC-44 SC-45 SC-46 SC-47 SC-48 SC-49 SC-5 SC-50 SC-51 SC-6 SC-7 SC-8 SC-9