Firmware Downgrade Vulnerability in Tesla Wall Connector
CVE-2025-8321

6.8MEDIUM

Key Information:

Vendor

Tesla

Status
Wall Connector
Vendor
CVE Published:
30 July 2025

What is CVE-2025-8321?

The Tesla Wall Connector devices have a vulnerability in their firmware upgrade feature, which lacks an anti-downgrade mechanism. This flaw allows an attacker with physical access to execute arbitrary code on the device without the need for authentication. By exploiting this vulnerability alongside other weaknesses, an intruder can manipulate the device firmware, potentially compromising the security and functionality of the installation.

Affected Version(s)

Wall Connector 24.44.1

References

https://www.zerodayinitiative.com/advisories/ZDI-25-712/
x_research-advisory

CVSS V3.0

Score:
6.8
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Physical
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2025-8321 : Firmware Downgrade Vulnerability in Tesla Wall Connector