CVE-2023-32156: Tesla Model 3 Gateway Firmware Signature Validation Bypass Vulnerability

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HIGH 8.8MITIGATE

CVE-2023-32156 is a high-severity flaw (CVSS 8.8) affecting model 3 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 durin

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.8 (High)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 63%)
CISA exploited list	No
Weakness	CWE-367
Published	2024-05-03
Last modified	2026-06-17

Publisher (CNA): Zero Day Initiative · Vendor: tesla

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-05-03 02:15 UTCPublished CVE record published
2026-06-17 05:58 UTCUpdated Record last modified

tesla model 3 firmware MITIGATE

Affected: 2023.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 2023.6

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-32156?

model 3 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-32156 being exploited?

CVE-2023-32156 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-32156 affect?

CVE-2023-32156 affects model 3 firmware. Severity is high (CVSS 8.8). 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 execut

How urgent is CVE-2023-32156?

Priority 40/100. High severity

Software pages

Tesla and automotive vulnerabilities

Related CVEs

CVE-2025-2082 HIGH 7.5 UPGRADE Tesla Model 3 VCSEC Integer Overflow Remote Code Execution Vulnerability
CVE-2023-32157 HIGH 7.5 MITIGATE Tesla Model 3 bsa_server BIP Heap-based Buffer Overflow Arbitrary Code Execution Vulnerability
CVE-2023-32155 HIGH 7.0 MITIGATE Tesla Model 3 bcmdhd Out-Of-Bounds Write Local Privilege Escalation Vulnerability

References

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