Vulnerability Details : CVE-2023-26243

Potential exploit
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.
Published 2023-04-27 01:15:08
Updated 2025-01-31 19:15:12
Source MITRE
View at NVD,   CVE.org

Products affected by CVE-2023-26243

Exploit prediction scoring system (EPSS) score for CVE-2023-26243

EPSS FAQ
0.05%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 13 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-26243

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.8
 HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
1.8
5.9
 134c704f-9b21-4f2e-91b3-4a467353bcc0 2025-01-31
7.8
 HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
1.8
5.9
 NIST

CWE ids for CVE-2023-26243

  • The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
    Assigned by: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
  • The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2023-26243

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