Tesla Wall Connector Firmware Downgrade Vulnerability
Key facts
- Attack vector
- Physical
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · CNA. Fix status from CNA.
Summary
Tesla Wall Connector Firmware Downgrade Vulnerability. This vulnerability allows physically present attackers to execute arbitrary code on affected installations of Tesla Wall Connector devices. Authentication is not required to exploit this vulnerability. The specific flaw exists within the firmware upgrade feature. The issue results from the lack of an anti-downgrade mechanism. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the device. Was ZDI-CAN-26299.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Tesla | Wall Connector | 24.44.1 | — | No fix listed | CNA |
- Wall Connector VendorTesla Affected 24.44.1 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-8321
- 2026-10-03 Alias added: GHSA-mccj-pq5m-h2mp
References
Advisory 1
More Tesla Wall Connector Firmware vulnerabilities
- TI-2025-07616 Tesla Wall Connector Content-Length Header Improper Input Validation Remote Code… CVSS 3.0HIGH 8.8
Sources
- CVE-2025-8321 · CVE Program
- CVE-2025-8321 · NVD
- FIRST EPSS
- GHSA-mccj-pq5m-h2mp · GitHub Advisory Database · CC BY 4.0
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