PT-2026-52445 · Alps Electric · Remote Keyless Entry System (Rkes) R53R0

Danilo Erazo · Published 2026-06-25 · Updated 2026-06-25 · CVE-2026-49319

Mitre

CVSS v3.1

6.5

Medium

Base vector

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

Remote Keyless Entry System (RKES), using the 433 MHz key fob bearing FCC ID CWTR53R0 manufactured by ALPS ALPINE CO., LTD., is vulnerable to a roll-back attack against its rolling-code authentication. 

An attacker within RF range who records two consecutive lock or unlock transmissions from a legitimate key fob can later replay the same pair of transmissions repeatedly. During testing, replaying the first captured transmission caused the RKES to enter a state in which replaying the second captured transmission resulted in a successful lock or unlock operation of the vehicle. Tested and confirmed on a 2024 Suzuki Swift (SWIFT ISG GLS AC 1.2 5P 4x2 TM).

Fix

Weakness Enumeration

CWE-294

Related Identifiers

CVE-2026-49319

Affected Products

Remote Keyless Entry System (Rkes) R53R0

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-49319 · Security Note
• https://fccid.io/CWTR53R0 · Note