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CVE-2026-49319

MEDIUM
6.5
CVSS 3.1
Description
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).

Metadata

CVE ID
CVE-2026-49319
State
PUBLISHED
Assigner
ASRG
Reserved
2026-05-29 07:26 UTC
Published
2026-06-25 14:11 UTC
Last updated
2026-06-25 15:12 UTC
Primary CWE
CWE-294
CWE-294 Authentication Bypass by Capture-replay
Vendor / Product
Alps Electric Co., Ltd. / Remote Keyless Entry System (RKES) R53R0
Sources
cve.org  ·  NVD

Severity & Metrics

6.5 MEDIUM CVSS 3.1
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
SSVC — CISA Coordinator
Exploitation
none
Automatable
no
Tech. Impact
partial
Affected products (1)
VendorProductPlatformVersions
Alps Electric Co., Ltd. Remote Keyless Entry System (RKES) R53R0 — R53R0
Weakness (CWE)
CWESourceDescription
CWE-294 cna CWE-294 Authentication Bypass by Capture-replay
CVSS scores (2)
ScoreSeverityVersionSourceVector
6.9 MEDIUM 4.0 cna 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
6.5 MEDIUM 3.1 cna CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
References (1)
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