CVE-2026-31431

Linux kernel vulnerability CVE-2026-31431 enables privilege escalation via incorrect resource transfer between spheres.

This unpatched kernel flaw allows privilege escalation, posing a critical risk to DIB systems relying on Linux for security controls. Organizations must patch immediately to prevent unauthorized access to sensitive data and maintain NIST 800-171 compliance.

Shame score — A known kernel vulnerability that poses significant risk but lacks the negligence or avoidability of a supply-chain breach or default credential failure.