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CVE-2023-32156

Tesla Model 3 Gateway Firmware Signature Validation Bypass Vulnerability

HIGH
8.8
CVSS Score
Published: May 3, 2024 at 01:56 AM UTC
Updated: June 17, 2026 at 05:58 AM UTC
2 products affected across 1 vendorModel 3 FirmwareModel 3

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Severity
HIGH8.8
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

Tesla Model 3 Gateway Firmware Signature Validation Bypass Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected Tesla Model 3 vehicles. An attacker must first obtain the ability to execute privileged code on the Tesla infotainment system in order to exploit this vulnerability. The specific flaw exists within the handling of firmware updates. The issue results from improper error-handling during the update process. An attacker can leverage this vulnerability to execute code in the context of Tesla's Gateway ECU. . Was ZDI-CAN-20734.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Model 3 Firmware· Tesla
95%
v < 2023.122023.6
Affected range stops below 2023.12, so it looks safe — our inference, not a vendor statement
Model 3· Tesladevice
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_research-advisoryThird Party Advisory
Source: [email protected]
https://www.zerodayinitiative.com/advisories/ZDI-23-972/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGH[email protected]
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-367NVD-CWE-noinfo

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