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.

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Acrisure KARR BT unaffected
Version Status Constraints
Versions prior to July 20, 2026 affected —
Acrisure DR-100 unaffected
Version Status Constraints
Versions prior to July 20, 2026 affected —

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Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

Acrisure Protection Group released a firmware update on July 20, 2026, to address this vulnerability. They recommend that affected users should follow the directions found here: https://www.karrsecurity.com/karr-security-firmware-update-instructions.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.cisa.gov/news-events/ics-advisories/icsa-26-216-01 cve-icon
History

Wed, 05 Aug 2026 20:45:00 +0000

Type Values Removed Values Added
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.
Title Use of hard-coded cryptographic key in Acrisure KARR BT and DR-100
Weaknesses CWE-321
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H'}

cvssV4_0

{'score': 7.2, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: icscert

Published:

Updated: 2026-08-05T20:13:13.067Z

Reserved: 2026-07-30T17:01:44.405Z

Link: CVE-2026-18411

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-05T21:30:16Z

Weaknesses