Vulnerability · Published May 3, 2024 · Assigned by zdi

CVE-2023-32155Tesla Model 3 bcmdhd Out-Of-Bounds Write Local Privilege Escalation Vulnerability

High 7.8

In plain English

A high-severity out-of-bounds write in Model 3 from Tesla. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities).

Severity (CVSS 3.0)7.8High

Exploit odds (30 days)0.2%top 87.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Tesla Model 3 bcmdhd Out-Of-Bounds Write Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected Tesla Model 3 vehicles. An attacker must first obtain the ability to execute code on the wifi subsystem in order to exploit this vulnerability. The specific flaw exists within the bcmdhd driver. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the kernel. . Was ZDI-CAN-20733.

Affected products (as reported)

Vendor	Product	Versions
Tesla	Model 3	Model 3 - 2023.6

Weakness: CWE-787 · Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

References

ZDI-23-971 x_research-advisory