CVE-2026-4156

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector : AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability : 1.6 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.zerodayinitiative.com/advisories/ZDI-26-196/	Third Party Advisory

Configurations

Configuration 1 (hide)

AND

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

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

History

No history.

Information

Published : 2026-04-11 01:16

Updated : 2026-06-17 10:56

NVD link : CVE-2026-4156

Mitre link : CVE-2026-4156

CVE.ORG link : CVE-2026-4156

JSON object : View

Products Affected

chargepoint

home_flex_cph50_firmware
home_flex_cph50

CWE

CWE-121

Stack-based Buffer Overflow

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