CVE-2026-27815

EVerest is an EV charging software stack. Prior to versions to 2026.02.0, ISO15118_chargerImpl::handle_session_setup copies a variable-length payment_options list into a fixed-size array of length 2 without bounds checking. With schema validation disabled by default, oversized MQTT Cmd payloads can trigger out-of-bounds writes and corrupt adjacent EVSE state or crash the process. Version 2026.02.0 contains a patch.

CVSS v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/EVerest/EVerest/security/advisories/GHSA-7wmg-crc8-6xxf	Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:o:linuxfoundation:everest:*:*:*:*:*:*:*:*

History

31 Mar 2026, 15:04

Type	Values Removed	Values Added
References	~~() https://github.com/EVerest/EVerest/security/advisories/GHSA-7wmg-crc8-6xxf -~~	() https://github.com/EVerest/EVerest/security/advisories/GHSA-7wmg-crc8-6xxf - Mitigation, Vendor Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 9.1
First Time		Linuxfoundation Linuxfoundation everest
CPE		cpe:2.3:o:linuxfoundation:everest::::::::

30 Mar 2026, 13:26

Type	Values Removed	Values Added
Summary		(es) EVerest es una pila de software de carga de vehículos eléctricos. Antes de la versión 2026.02.0, ISO15118_chargerImpl::handle_session_setup copia una lista payment_options de longitud variable en un array de tamaño fijo de longitud 2 sin comprobación de límites. Con la validación de esquema deshabilitada por defecto, las cargas útiles MQTT Cmd sobredimensionadas pueden desencadenar escrituras fuera de límites y corromper el estado EVSE adyacente o bloquear el proceso. La versión 2026.02.0 contiene un parche.

26 Mar 2026, 17:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-26 17:16

Updated : 2026-03-31 15:04

NVD link : CVE-2026-27815

Mitre link : CVE-2026-27815

CVE.ORG link : CVE-2026-27815

JSON object : View

Products Affected

linuxfoundation

everest

CWE

CWE-787

Out-of-bounds Write

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