CVE-2023-26243

Published Apr 27, 2023 CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Description
An issue was discovered in the Hyundai Gen5W_L in-vehicle infotainment system AE_E_PE_EUR.S5W_L001.001.211214. The decryption binary used to decrypt firmware files has an information leak that allows an attacker to read the AES key and initialization vector from memory. An attacker may exploit this to create custom firmware that may be installed in the IVI system. Then, an attacker may be able to install a backdoor in the IVI system that may allow him to control it, if it is connected to the Internet through Wi-Fi.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-30068 An issue was discovered in the Hyundai Gen5W_L in-vehicle infotainment system AE_E_PE_EUR.S5W_L001.001.211214. The decryption binary used to decrypt firmware files has an information leak that allows an attacker to read the AES key and initialization vector from memory. An attacker may exploit this to create custom firmware that may be installed in the IVI system. Then, an attacker may be able to install a backdoor in the IVI system that may allow him to control it, if it is connected to the Internet through Wi-Fi.
History
Type Values Removed Values Added
First Time appeared Hyundai gen5w L
Hyundai gen5w L Firmware
Weaknesses CWE-668 CWE-269
CPEs cpe:2.3:h:hyundai:gen5w_l_in-vehicle_infotainment_system:-:*:*:*:*:*:*:*
cpe:2.3:o:hyundai:gen5w_l_in-vehicle_infotainment_system_firmware:5w.xxx.s5w_l.001.001.221129:*:*:*:*:*:*:*
cpe:2.3:o:hyundai:gen5w_l_in-vehicle_infotainment_system_firmware:ae_e_pe_eur.s5w_l001.001.211214:*:*:*:*:*:*:*
cpe:2.3:h:hyundai:gen5w_l:-:*:*:*:*:*:*:*
cpe:2.3:o:hyundai:gen5w_l_firmware:ae_e_pe_eur.s5w_l001.001.211214:*:*:*:*:*:*:*
Vendors & Products Hyundai gen5w L In-vehicle Infotainment System
Hyundai gen5w L In-vehicle Infotainment System Firmware
Hyundai gen5w L
Hyundai gen5w L Firmware
Type Values Removed Values Added
Weaknesses CWE-22
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Jan 31, 2025, 7:01 PM
Reserved
Feb 21, 2023, 12:00 AM
Status
Analyzed
Published
Apr 27, 2023, 1:15 AM
Modified
Jun 17, 2026, 5:42 AM