Is CVE-2026-18411 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-18411?

CVE-2026-18411 has a CVSS v3 severity of HIGH (8.1).

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CVE-2026-18411

Description

The KARR Security System and SWDS dealer-installed automotive anti-theft systems use a shared Bluetooth authentication key across affected devices. An attacker within Bluetooth range can leverage this weakness to issue unauthorized commands to the vehicle, potentially allowing unauthorized access to vehicle functions, including door unlocking and engine immobilization.