CVE-2025-8321: Tesla Wall Connector Firmware Downgrade Vulnerability

Q: How do I fix CVE-2025-8321?

wall connector firmware: upgrade to 24.44.3. Exact commands for each OS are on this page.

Q: Is CVE-2025-8321 being exploited?

CVE-2025-8321 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-8321 affect?

CVE-2025-8321 affects wall connector firmware. Severity is medium (CVSS 6.8). 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 thi

Q: How urgent is CVE-2025-8321?

Priority 32/100. No elevated risk signals yet.

Routine

MEDIUM 6.8UPGRADE

CVE-2025-8321 is a medium-severity flaw (CVSS 6.8) affecting wall connector firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 vulnerabil

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.8 (Medium)
Attack vector	Physical
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 65%)
CISA exploited list	No
Weakness	CWE-1328
Published	2025-07-30
Last modified	2026-06-17

Publisher (CNA): Zero Day Initiative · Vendor: tesla

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-07-30 01:15 UTCPublished CVE record published
2026-06-17 10:06 UTCUpdated Record last modified

tesla wall connector firmware UPGRADE

Affected: < 24.44.3

Fixed in: 24.44.3

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-8321?

wall connector firmware: upgrade to 24.44.3. Exact commands for each OS are on this page.

Is CVE-2025-8321 being exploited?

CVE-2025-8321 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-8321 affect?

CVE-2025-8321 affects wall connector firmware. Severity is medium (CVSS 6.8). 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 thi

How urgent is CVE-2025-8321?

Priority 32/100. No elevated risk signals yet.

Software pages

Tesla and automotive vulnerabilities

Related CVEs

CVE-2025-8320 HIGH 8.8 UPGRADE Tesla Wall Connector Content-Length Header Improper Input Validation Remote Code Execution Vulnerability

References

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