CVE-2025-8321

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.

CVSS v3.1 Score

6.8

MEDIUM

CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-1328 CWE-1328

Affected Products

Vendor	Product	Versions
tesla	wall_connector_firmware	< 24.44.3
tesla	wall_connector	All

References

Other References

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

Frequently Asked Questions

What is CVE-2025-8321? +

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. It has a CVSS v3.1 base score of 6.8 (MEDIUM).

How severe is CVE-2025-8321? +

CVE-2025-8321 has a CVSS v3.1 score of 6.8 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-8321? +

CVE-2025-8321 affects products from tesla, specifically: wall_connector, wall_connector_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-8321? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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