CVE-2026-20745

CVE-2026-20745 is an out-of-bounds write in an Intel WiFi driver, scored 7.1 (High). Treat this as a kernel compromise until proven otherwise. The vulnerability triggers from adjacent network proximity—meaning any device within radio range in your environment can trigger it, not just your owned hardware. The CVSS score undersells the actual risk. The attack complexity is low, the vector is adjacent (WiFi range), and an OOB write in a privileged driver context immediately escalates to kernel-level code execution. The 'adjacent' classification implies geographic constraint, but in any urban, campus, or enterprise deployment, your wireless perimeter extends to every device that can associate—and every device that can associate is a potential exploit trigger. This is not a vulnerability you can wall off with network segmentation; it's a vulnerability that lives at the segmentation boundary itself. Patch priority: this goes to the top of your wireless infrastructure update queue, not because the CVSS says 7.1, but because the blast radius of a successful exploit doesn't stay in the WiFi stack. A compromised wireless driver has direct access to every packet that traversed the interface before lateral movement is even required—credentials, internal network traffic, VPN tunnels. The driver sits at a chokepoint where untrusted external data flows directly into privileged execution. Compounding the concern: Intel's WiFi driver ecosystem carries code from multiple acquired vendors, maintained across divergent Windows versions, chip generations, and firmware branches. This fragmentation means the vulnerable code path may exist in multiple driver variants simultaneously, each with different patch velocities. Your deployment likely has heterogeneous driver versions in production—audit them. Immediate actions: confirm which Intel wireless adapter families and driver versions are present in your environment, apply the vendor patch immediately, and treat any unpatched wireless-enabled system as a potential staging point for privilege escalation until the update propagates. For systems that cannot be patched quickly, consider disabling the wireless interface or enforcing wired-only connectivity until remediation completes.

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