CVE-2026-53362

A Linux kernel vulnerability allows privilege escalation via the IPv6 networking subsystem, impacting multiple distributions including Suse and Red Hat.

This kernel-level flaw enables attackers to escalate privileges through the IPv6 subsystem, affecting major Linux distributions used in defense infrastructure. DIB organizations must ensure their Linux systems are patched against this actively exploited vulnerability to prevent unauthorized access and maintain compliance with security baselines.

Shame score — The vulnerability is actively exploited in the wild (KEV) and impacts foundational operating systems used across the defense industrial base, indicating a critical failure in patch management and supply chain security.