Vulnerability · Published Jul 30, 2025 · Assigned by zdi

CVE-2025-8321Tesla Wall Connector Firmware Downgrade Vulnerability

Medium 6.8

In plain English

A medium-severity security flaw in Wall Connector from Tesla. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).

Severity (CVSS 3.0)6.8Medium

Exploit odds (30 days)0.4%top 63.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
Tesla	Wall Connector	24.44.1

Weakness: CWE-1328 · Vector: CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

ZDI-25-712 x_research-advisory