CVE-2026-4692

Access enforcement directly requires approved authorizations to be applied to compartmentalized resources.

Information flow enforcement structurally prevents unauthorized mixing of data or functions across privilege boundaries.

Access control policies establish the boundaries that isolation must enforce.

A.5.18's provisioning, review, SoD enforcement, activation-only-after-authorization, and timely revocation directly stop exploitation of improper isolation/compartmentalization by ensuring privilege boundaries are authorized, segregated, and maintained; bounded remainder is flawed isolation designs that are never granted rights in the first place (pure design flaw, not a rights-management failure).

A.5.3 directly mandates determining and enforcing segregation of conflicting duties/roles (with examples that map to privilege boundaries), which stops improper isolation from being exploitable in most cases; the bounded remainder is small organizations or cases where segregation is impracticable and the clause itself falls back to other controls.

Privileged access rights require strict isolation from ordinary user contexts.

A.8.22's network-domain segregation and perimeter gateways (firewalls) directly enforce isolation between trust/criticality levels, stopping cross-domain exploitation of improper compartmentalization for the bulk of network-based privilege flows; the bounded remainder is non-network resources (e.g. process-level or in-memory compartmentalization inside a single domain).

A.8.27 mandates security-by-design principles including least privilege, defense-in-depth, compartmentalization via zero-trust/never-trust, fail-secure, and explicit analysis of control placement and integration to isolate differing privilege levels; this stops exploitation of most improper-isolation cases but leaves a bounded remainder (e.g. certain legacy or safety-overriding exceptions that must be formally acknowledged).