Auth bypass in Hyundai Gen5w L
CVE-2023-26246
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.
Vulnerability class: Privilege Escalation
EPSS: 0.003 (25.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Hyundai Gen5w_l
- Hyundai Gen5w_l_firmware — versions ae_e_pe_eur.s5w_l001.001.211214
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Not Applicable)
- cve@mitre.org (Exploit, Third Party Advisory)
- cve@mitre.org (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-26246?
- CVE-2023-26246 is a high-severity vulnerability in Hyundai Gen5w L, classified under Improper Privilege Management. CVSS score: 7.8/10. Published 2023-04-27.
- How severe is CVE-2023-26246?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2023-26246 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.