CVE-2025-8321 Tesla Wall Connector Firmware Downgrade Vulnerability
Physically present attackers can bypass anti-downgrade protections to install vulnerable firmware and execute arbitrary code on Tesla Wall Connectors.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-8321?
CVE-2025-8321 is a medium-severity vulnerability in Tesla Wall Connector, published on 30 Jul 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-1328
Which versions are affected by CVE-2025-8321?
It affects 1 product.
Products include Tesla Wall Connector Firmware.
How do I fix CVE-2025-8321?
No fix has been published for CVE-2025-8321 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-8321 being exploited?
There is no known exploitation of CVE-2025-8321 in the wild and no public exploit code.
Other vulnerabilities in Tesla Wall Connector
Sources
Also known as GHSA-mccj-pq5m-h2mp.