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TI-2026-11278 Aliases CVE-2026-13308GHSA-h225-8qf9-jw2x

Integer underflow in Autel MaxiCharger AC Elite Home

Priority LOW 39CWE-191Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA. Impact type from CWE-191 and the CVSS impact.

Summary

Autel MaxiCharger AC Elite Home WebSockets Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote 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 specific flaw exists within the handling of WebSocket messages related to the OCPP service. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-29113.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00779 56th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AutelMaxiCharger AC Elite Home1.39.51—No fix listedCNA
  • MaxiCharger AC Elite Home VendorAutel Affected 1.39.51 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-13308
  2. 2026-10-03 Alias added: GHSA-h225-8qf9-jw2x

References

Other 1

  • TI-2026-07902 Unauthenticated command injection in Autel MaxiCharger Single CVSS 4.0CRITICAL 10.0
  • TI-2026-07901 Unauthenticated RCE in Autel MaxiCharger Single CVSS 4.0CRITICAL 10.0
  • TI-2026-07900 Backdoor Authentication Token CVSS 4.0CRITICAL 10.0
  • TI-2026-07899 Hard-coded / Backdoor Accounts CVSS 4.0CRITICAL 10.0
  • TI-2026-07904 Authenticated heap overflow in Autel MaxiCharger Single CVSS 4.0CRITICAL 9.4
  • TI-2026-07903 Command Injection via Malicious OCPP Server CVSS 4.0CRITICAL 9.5
See all 27 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences