Security readout for executives and security teams
Plain-English summary
CVE-2020-29438 affects Tesla Model X key fobs for vehicles before 2020-11-23. The fob could accept firmware updates without checking a digital signature, allowing malicious firmware to expose an unlock code. This is a vehicle access risk, but the provided sources do not show active exploitation or a CVSS score.
Executive priority
Treat this as a targeted physical-access security issue rather than an internet-scale emergency. Priority is highest for fleets, executives, and high-value vehicles where unauthorized unlock could create safety, theft, or business continuity concerns.
Technical view
The issue is missing firmware signature verification in Tesla Model X key fobs. According to the CVE description, crafted firmware could retrieve an unlock code from a secure enclave chip. The bundle does not provide detailed prerequisites, exploit maturity, affected hardware revisions, or vendor remediation mechanics beyond the before-2020-11-23 scope.
Likely exposure
Exposure appears limited to Tesla Model X vehicles and associated key fobs before 2020-11-23. The bundle lists no CPEs, precise model years, or component versions, so asset teams should validate status through Tesla records rather than broad assumptions.
Exploitation context
CISA KEV is false in the bundle, and no cited source confirms active exploitation. Public reporting exists via Wired, but the source bundle does not include enough detail to assess real-world exploitation frequency, required proximity, tooling, or attacker sophistication.
Researcher notes
Evidence is sparse: the CVE gives the core weakness and effect, but no CVSS, CWE, CPE, detailed versions, or full remediation text. Avoid claiming exploitability conditions beyond the cited missing signature verification and unlock-code retrieval impact.
Mitigation direction
- Confirm Tesla vendor guidance for Model X key fob firmware remediation.
- Verify vehicles and fobs are updated beyond the 2020-11-23 affected scope.
- Ask Tesla service to inspect or replace uncertain key fobs.
- Review and remove unknown or untrusted paired keys where supported.
- Apply normal physical key custody controls for high-value vehicles.
Validation and detection
- Inventory Model X vehicles and paired key fobs.
- Check service records for updates after 2020-11-23.
- Confirm firmware or remediation status with Tesla support.
- Review vehicle key-pairing state for unexpected fobs.
- Document unresolved vehicles as exposure pending vendor confirmation.
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-2020-29438 mapping review
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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.