Acrisure KARR BT and DR-100

View CSAF Summary Successful exploitation of this vulnerability could allow an attacker to perform unauthorized vehicle control operations. The following versions of Acrisure KARR BT and DR-100 are affected: KARR BT firmware <July_20_2026 DR-100 firmware <July_20_2026 CVSS Vendor Equipment Vulnerabilities v3 8.1 Acrisure Acrisure KARR BT and DR-100 Use of Hard-coded Cryptographic Key Background Critical Infrastructure Sectors: Transportation Systems Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-18411 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. View CVE Details Affected Products Acrisure KARR BT and DR-100 Vendor: Acrisure Product Version: Acrisure KARR BT firmware: <July_20_2026, Acrisure DR-100 firmware: <July_20_2026 Product Status: known_affected Remediations Vendor fix 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. https://www.karrsecurity.com/karr-security-firmware-update-instructions Relevant CWE: CWE-321 Use of Hard-coded Cryptographic Key Metrics CVSS Version Base Score Base Severity Vector String 3.1 8.1 HIGH CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H 4.0 7.2 HIGH 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 Acknowledgments Aaron Schulman, Jerry Yu, Yibo Wei, Sumanth Rao, Mohak Vaswani, Jefferson Chien, Christian Dameff, Nishant Bhaskar of UC San Diego team reported this vulnerability to CISA. Legal Notice and Terms of Use This product is prov