CVE-2026-18411 — HIGH (8.1)

Vulnerability 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.

CVSS Score

8.1

HIGH

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-321

References

https://www.cisa.gov/news-events/ics-advisories/icsa-26-216-01

FAQ

What is CVE-2026-18411?

CVE-2026-18411 is a vulnerability with a CVSS score of 8.1 (HIGH). 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...

How severe is CVE-2026-18411?

CVE-2026-18411 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-18411?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.