VULNERABILITY INTELLIGENCE

CVE-2023-26246

CVSS score7.8 HIGH

EPSS probability0.33%

CISA KEVNot currently listed

Published2023-04-27

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

An issue was discovered in the Hyundai Gen5W_L in-vehicle infotainment system AE_E_PE_EUR.S5W_L001.001.211214. The AppUpgrade binary file, which is used during the firmware installation process, can be modified by an attacker to bypass the digital signature check. This indirectly allows an attacker to install custom firmware in the IVI system.

Weakness classification

nvd@nist.gov: CWE-269
134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-863

Primary references

cve@mitre.org — Not Applicable
cve@mitre.org — Exploit, Third Party Advisory
cve@mitre.org — Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Not Applicable
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory