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VULNERABILITIES

CVE-2026-4156 Details

Description

ChargePoint Home Flex OCPP getpreq Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of ChargePoint Home Flex EV chargers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of OCPP messages. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-26339.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://www.zerodayinitiative.com/advisories/ZDI-26-196/ [email protected]Third Party Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-121Stack-based Buffer Overflow[email protected]

Affected Products

ProductVersions
chargepoint home flex cph50 firmware
< 5.5.4.22

CPE

  • cpe:2.3:o:chargepoint:home_flex_cph50_firmware:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
chargepoint home flex cph50
All versions

CPE

  • cpe:2.3:h:chargepoint:home_flex_cph50:-:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-4156
NVD Published Date:
Apr 11, 2026
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2026-4156 Details - Not Deferred