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).
https://www.asrg.io/security-advisories/cve-2026-49319-suzuki-swift-2024-rkes-rollback-replay
Published: 2026-06-25
Updated: 2026-06-26
Base Score: 6.1
Vector: CVSS2#AV:A/AC:L/Au:N/C:N/I:C/A:N
Severity: Medium
Base Score: 6.5
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Severity: Medium
Base Score: 6.9
Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:L/SA:N
Severity: Medium
EPSS: 0.0024