ZDI-26-434: (Pwn2Own) Autel MaxiCharger AC Elite Home USB Authentication Bypass Vulnerability
This vulnerability allows physically present attackers to bypass authentication on affected installations of Autel MaxiCharger AC Elite Home EV chargers. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 4.3. The following CVEs are assigned: CVE-2026-13306.
AI Analysis
Technical Summary
CVE-2026-13306 is an authentication bypass vulnerability in the Autel MaxiCharger AC Elite Home EV charger. The flaw exists due to a lack of authentication checks on the exposed USB interface, allowing an attacker with physical access to bypass authentication controls. This vulnerability affects firmware versions prior to 1.40.81. The vulnerability was responsibly disclosed to the vendor on March 19, 2026, and publicly released on July 15, 2026. No known exploits are reported in the wild.
Potential Impact
An attacker with physical access to the affected EV charger can bypass authentication mechanisms, potentially gaining unauthorized control or access to device functions. The CVSS score of 4.3 reflects limited impact, primarily due to the requirement for physical presence and the medium severity of the flaw.
Mitigation Recommendations
Upgrade the firmware of the Autel MaxiCharger AC Elite Home EV charger to version 1.40.81 or later, where the authentication bypass vulnerability is fixed. No other mitigation is required as the issue is resolved in the official firmware update.
ZDI-26-434: (Pwn2Own) Autel MaxiCharger AC Elite Home USB Authentication Bypass Vulnerability
Description
This vulnerability allows physically present attackers to bypass authentication on affected installations of Autel MaxiCharger AC Elite Home EV chargers. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 4.3. The following CVEs are assigned: CVE-2026-13306.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-13306 is an authentication bypass vulnerability in the Autel MaxiCharger AC Elite Home EV charger. The flaw exists due to a lack of authentication checks on the exposed USB interface, allowing an attacker with physical access to bypass authentication controls. This vulnerability affects firmware versions prior to 1.40.81. The vulnerability was responsibly disclosed to the vendor on March 19, 2026, and publicly released on July 15, 2026. No known exploits are reported in the wild.
Potential Impact
An attacker with physical access to the affected EV charger can bypass authentication mechanisms, potentially gaining unauthorized control or access to device functions. The CVSS score of 4.3 reflects limited impact, primarily due to the requirement for physical presence and the medium severity of the flaw.
Mitigation Recommendations
Upgrade the firmware of the Autel MaxiCharger AC Elite Home EV charger to version 1.40.81 or later, where the authentication bypass vulnerability is fixed. No other mitigation is required as the issue is resolved in the official firmware update.
Technical Details
- Article Source
- {"url":"http://www.zerodayinitiative.com/advisories/ZDI-26-434/","fetched":true,"fetchedAt":"2026-07-16T15:50:47.769Z","wordCount":185}
- Classification
- {"confidence":0.95,"severitySource":"cvss-text","classifier":"rss-v2"}
Threat ID: 6a58fe6668715ace43485bd8
Added to database: 07/16/2026, 15:53:10 UTC
Last enriched: 08/07/2026, 06:03:09 UTC
Last updated: 08/30/2026, 11:19:34 UTC
Views: 97
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