ZDI-26-433: (Pwn2Own) Autel MaxiCharger AC Elite Home Software Update Improper Verification of Cryptographic Signature Arbitrary Code Execution Vulnerability
This vulnerability allows physically present attackers to execute arbitrary code 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 6.4. The following CVEs are assigned: CVE-2026-13305.
AI Analysis
Technical Summary
CVE-2026-13305 is a vulnerability in the Autel MaxiCharger AC Elite Home EV charger software update mechanism. It arises from improper verification of the cryptographic signature of software update images, allowing an attacker with physical access to execute arbitrary code on the device without requiring authentication. The vulnerability was reported to the vendor on 2026-03-19 and publicly disclosed on 2026-07-15. The vendor fixed the issue in firmware version V1.40.81.
Potential Impact
An attacker with physical access to the affected EV charger can execute arbitrary code on the device without needing authentication. This could compromise the device's integrity, confidentiality, and availability. The CVSS vector indicates high impact on confidentiality, integrity, and availability (C:H/I:H/A:H), but the attack complexity is high and requires physical access.
Mitigation Recommendations
Upgrade the Autel MaxiCharger AC Elite Home EV charger firmware to version V1.40.81 or later, which contains the official fix for this vulnerability. No other mitigations are indicated by the vendor advisory.
ZDI-26-433: (Pwn2Own) Autel MaxiCharger AC Elite Home Software Update Improper Verification of Cryptographic Signature Arbitrary Code Execution Vulnerability
Description
This vulnerability allows physically present attackers to execute arbitrary code 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 6.4. The following CVEs are assigned: CVE-2026-13305.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-13305 is a vulnerability in the Autel MaxiCharger AC Elite Home EV charger software update mechanism. It arises from improper verification of the cryptographic signature of software update images, allowing an attacker with physical access to execute arbitrary code on the device without requiring authentication. The vulnerability was reported to the vendor on 2026-03-19 and publicly disclosed on 2026-07-15. The vendor fixed the issue in firmware version V1.40.81.
Potential Impact
An attacker with physical access to the affected EV charger can execute arbitrary code on the device without needing authentication. This could compromise the device's integrity, confidentiality, and availability. The CVSS vector indicates high impact on confidentiality, integrity, and availability (C:H/I:H/A:H), but the attack complexity is high and requires physical access.
Mitigation Recommendations
Upgrade the Autel MaxiCharger AC Elite Home EV charger firmware to version V1.40.81 or later, which contains the official fix for this vulnerability. No other mitigations are indicated by the vendor advisory.
Technical Details
- Article Source
- {"url":"http://www.zerodayinitiative.com/advisories/ZDI-26-433/","fetched":true,"fetchedAt":"2026-07-16T15:50:49.627Z","wordCount":198}
Threat ID: 6a58fe6668715ace43485bdb
Added to database: 07/16/2026, 15:53:10 UTC
Last enriched: 07/16/2026, 15:55:00 UTC
Last updated: 07/16/2026, 19:57:17 UTC
Views: 4
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