Vehicle control via unauthenticated CAN message injection
Published Sep 4, 2025 · Updated Sep 11, 2025
CAN bus injection in Tesla Model 3 2023.xx before 2023.44 allows physically proximate attackers to control remote-start functions. An externally accessible connector exposes the in-vehicle CAN bus without cryptographic checks or secure-gateway protection and accepts crafted CAN frames. Physical access to the vehicle's external area is sufficient to repeatably unlock the vehicle, enable ignition, and place it into a driveable state without a valid key.
Summary
What happened
CAN bus injection in Tesla Model 3 2023.xx before 2023.44 allows physically proximate attackers to control remote-start functions. An externally accessible connector exposes the in-vehicle CAN bus without cryptographic checks or secure-gateway protection and accepts crafted CAN frames. Physical access to the vehicle's external area is sufficient to repeatably unlock the vehicle, enable ignition, and place it into a driveable state without a valid key.
The record
- CVE
- CVE-2025-6785
- Published
- Sep 4, 2025
- Updated
- Sep 11, 2025
- Vendor
- Tesla
- Product
- Model 3
- Classifications
- CWE-1263, CWE-74, CAPEC-6, CAPEC-401, T1692.001
- Attack vector
- physical
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 4, 2025CVE publishedPublication date reported by the CVE source.
- Sep 11, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=2023.xx <2023.44
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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