What is CVE-2025-8321?

CVE-2025-8321 is a medium-severity vulnerability in Tesla Wall Connector, classified under CWE-1328. CVSS score: 6.8/10. Published 2025-07-30.

How severe is CVE-2025-8321?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Is CVE-2025-8321 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Tesla Wall Connector

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.

EPSS: 0.004 (29.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-1328

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

zdi-disclosures@trendmicro.com (x_research-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2025-8321?: CVE-2025-8321 is a medium-severity vulnerability in Tesla Wall Connector, classified under CWE-1328. CVSS score: 6.8/10. Published 2025-07-30.
How severe is CVE-2025-8321?: Medium severity. CVSS v3 base score is 6.8 out of 10.
Is CVE-2025-8321 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.