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TI-2026-03604 Aliases CVE-2026-4156GHSA-93fc-f6pw-cp83

Stack-based buffer overflow in ChargePoint Home Flex

Priority LOW 35CWE-121Published · Updated

Key facts

Attack vector
Adjacent 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-121 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00425 37th 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
ChargePointHome Flex5.5.4.13—No fix listedCNA
  • Home Flex VendorChargePoint Affected 5.5.4.13 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:chargepoint:home_flex_cph50_firmware:*:*:*:*:*:*:*:*before 5.5.4.22VulnerableChargePoint
cpe:2.3:h:chargepoint:home_flex_cph50:-:*:*:*:*:*:*:*not specified by NVDRunning onChargePoint
  • cpe:2.3:o:chargepoint:home_flex_cph50_firmware:*:*:*:*:*:*:*:* Versions before 5.5.4.22 Vulnerable ·ChargePoint
  • cpe:2.3:h:chargepoint:home_flex_cph50:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ChargePoint

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-4156
  2. 2026-10-03 Alias added: GHSA-93fc-f6pw-cp83

References

Advisory 1

  • TI-2026-03603 ChargePoint Home Flex Inclusion of Sensitive Information in Source Code Information… CVSS 3.0HIGH 7.5
  • TI-2026-03605 OS command injection in ChargePoint Home Flex CVSS 3.0HIGH 7.5

Sources

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