What is CVE-2026-0778?

CVE-2026-0778 is a high-severity vulnerability in Enel X Juicebox 40, classified under Missing Authentication for Critical Function. CVSS score: 8.8/10. Published 2026-01-23.

How severe is CVE-2026-0778?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in Enel X Juicebox 40

CVE-2026-0778

Enel X JuiceBox 40 Telnet Service Missing Authentication Remote Code Execution Vulnerability. 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. Was ZDI-CAN-23285.

Vulnerability class: Broken Authentication

EPSS: 0.006 (45.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Enel X Juicebox 40 — versions 4.2.7

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

zdi-disclosures@trendmicro.com (x_research-advisory)

Frequently asked questions

What is CVE-2026-0778?: CVE-2026-0778 is a high-severity vulnerability in Enel X Juicebox 40, classified under Missing Authentication for Critical Function. CVSS score: 8.8/10. Published 2026-01-23.
How severe is CVE-2026-0778?: High severity. CVSS v3 base score is 8.8 out of 10.