How severe is CVE-2023-32156?

CVE-2023-32156 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-32156 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-32156?

CVE-2023-32156 affects Tesla Model 3 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-32156?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2023-32156 have an EU (EUVD) identifier?

Yes. CVE-2023-32156 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-36424.

When was CVE-2023-32156 published?

CVE-2023-32156 was published on 2024-05-03 and last updated on 2026-06-17.

CVE-2023-32156

CVE-2023-32156 is a high-severity vulnerability in Tesla Model 3 Firmware with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-367.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-36424
Weakness: CWE-367
Affected product: Tesla Model 3 Firmware
Published: 2024-05-03
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2023-32156?: 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.
How severe is CVE-2023-32156?: CVE-2023-32156 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-32156 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-32156?: CVE-2023-32156 affects Tesla Model 3 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-32156?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-32156 have an EU (EUVD) identifier?: Yes. CVE-2023-32156 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-36424.
When was CVE-2023-32156 published?: CVE-2023-32156 was published on 2024-05-03 and last updated on 2026-06-17.

References

https://www.zerodayinitiative.com/advisories/ZDI-23-972/

Affected products (1)

cpe:2.3:o:tesla:model_3_firmware:2023.6:*:*:*:*:*:*:*

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