// For flags

CVE-2025-8321

Tesla Wall Connector Firmware Downgrade Vulnerability

Severity Score

6.8
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

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.

Vulnerabilidad de degradación de Tesla Wall Connector Firmware. Esta vulnerabilidad permite a atacantes con presencia física ejecutar código arbitrario en las instalaciones afectadas de los dispositivos Tesla Wall Connector. No se requiere autenticación para explotar esta vulnerabilidad. La falla específica se encuentra en la función de actualización de firmware. El problema se debe a la falta de un mecanismo anti-degradación. Un atacante puede aprovechar esto, junto con otras vulnerabilidades, para ejecutar código en el contexto del dispositivo. Era ZDI-CAN-26299.

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.

*Credits: Synacktiv
CVSS Scores
Attack Vector
Physical
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track*
Exploitation
None
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2025-07-29 CVE Published
  • 2025-07-30 CVE Reserved
  • 2025-07-31 CVE Updated
  • 2025-08-24 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-1328: Security Version Number Mutable to Older Versions
CAPEC
References (1)
URL Tag Source
https://www.zerodayinitiative.com/advisories/ZDI-25-712 X_research Advisory
URL Date SRC
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Tesla
Search vendor "Tesla"
 Wall Connector
Search vendor "Tesla" for product "Wall Connector"
 24.44.1
Search vendor "Tesla" for product "Wall Connector" and version "24.44.1"
en
Affected