CVE-2025-8321

low-risk

Published 2025-07-30

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.

Do I need to act?

0.03% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 6.8/10 Medium

PHYSICAL / LOW complexity

Affected Products (1)

Wall Connector Firmware

Affected Vendors

Tesla

References (1)

Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-25-712/

/ 100

low-risk

Severity 22/34 · High

Exploitability 0/34 · Minimal

Exposure 5/34 · Minimal