Security readout for executives and security teams
Plain-English summary
Tesla Model X vehicles before 2020-11-23 may allow a new key fob to be paired without proper certificate validation. If an attacker is inside the vehicle or can inject data onto the CAN bus, they could use a spoofed key fob to start and drive the vehicle.
Executive priority
Treat this as high priority for any exposed Model X fleet because the impact is unauthorized vehicle operation. Urgency is lower than a remotely exploitable internet issue, but ownership, theft, and safety implications justify prompt verification with Tesla.
Technical view
The CVE describes missing certificate validation during key fob pairing with the body control module. The reported impact is unauthorized start and drive using a spoofed fob, but only with in-vehicle access or another path to send CAN bus data. No CVSS, CWE, or vendor mitigation details are included in the bundle.
Likely exposure
Exposure appears limited to Tesla Model X vehicles before 2020-11-23. The source bundle does not identify other Tesla models, software versions, regions, or fleet configurations. Practical exposure depends on vehicle update status and attacker access to the cabin or CAN bus.
Exploitation context
The bundle does not show CISA KEV listing or cited active exploitation. The described attack requires proximity and vehicle-internal access conditions, but successful exploitation could lead directly to vehicle theft or unauthorized operation.
Researcher notes
Evidence is sparse in the provided bundle: no CVSS vector, CWE, patch advisory text, or detailed affected version matrix. Avoid broadening scope beyond Model X before 2020-11-23. The Wired article is referenced, but the bundle’s actionable technical detail comes mainly from the CVE description.
Mitigation direction
- Confirm Tesla guidance for affected Model X vehicles before 2020-11-23.
- Apply any Tesla software update or service action identified for this issue.
- Verify all authorized key fobs and remove unknown pairings where supported.
- Restrict physical access to vehicles and diagnostic interfaces.
- Ask Tesla service to confirm remediation status for fleet vehicles.
Validation and detection
- Inventory Model X vehicles and determine whether they predate 2020-11-23 exposure.
- Confirm software, service, or remediation records with Tesla.
- Review whether unauthorized key fobs are paired to each vehicle.
- Assess controls protecting cabin access and CAN bus access points.
- Document residual risk where remediation status cannot be verified.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2020-29440 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wired.com/story/tesla-model-x-hack-bluetooth/CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.