EVerest’s ISO15118 update_energy_transfer_modes overflow can corrupt EVSE state_CVE-2026-27816

5.5 / 10

MEDIUM

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P

Description

EVerest is an EV charging software stack. Prior to versions to 2026.02.0, ISO15118_chargerImpl::handle_update_energy_transfer_modes copies a variable-length list into a fixed-size array of length 6 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.

Basic Information

ID CVE-2026-27816

Source GitHub_M

Published Mar 26, 2026 at 16:32

Modified Mar 26, 2026 at 18:24

Affected Product

Vendor EVerest

Product everest-core

Version < 2026.02.0

Affected Versions EVerest everest-core < 2026.02.0

CWE Classification

CWE-787

References

github.com /EVerest/EVerest/security/advisories/GHSA-gq54-j8f4-xj8c

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