(0Day) (Pwn2Own) Enel X JuiceBox 40 Telnet Service Missing Authentication Remote Code Execution Vulnerability
Vulnerability Details
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Enel X JuiceBox 40 charging stations. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the telnet service, which listens on TCP port 2000 by default. The issue results from the lack of authentication prior to allowing remote connections. An attacker can leverage this vulnerability to execute code in the context of the service account.
Additional Details
02/22/24 - ZDI submitted the report to the vendor’s security contact in North America
06/03/24 - ZDI asked for updates
06/16/25 – ZDI reached out to the vendor's cert team
06/20/25 – the cert team requested an extension until 12/31/25
06/25/25 – ZDI approved on an extension until 10/25/25
11/07/25 – ZDI asked for the fix
11/12/25 – the vendor requested an extension until June 2026
12/18/25 – ZDI notified the vendor of the intention to publish the case as a 0-day advisory
-- Mitigation: Given the nature of the vulnerability, the only salient mitigation strategy is to restrict interaction with the product
Disclosure Timeline
- 2025-06-27 - Vulnerability reported to vendor
- 2026-01-09 - Coordinated public release of advisory
- 2026-01-09 - Advisory Updated
Credit
ZDI team
