CVE-2023-26246

CVSS 7.8 HIGHEPSS 0.3%CWE-863

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.8EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

27 Apr 2023Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

n/a · n/a

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References

https://sowhat.iit.cnr.it https://sowhat.iit.cnr.it:8443/can-work/chimaera https://sowhat.iit.cnr.it:8443/can-work/chimaera/-/blob/main/Report/IIT-01-2023.pdf