Critical severity9.1NVD Advisory· Published Mar 26, 2026· Updated Mar 31, 2026
CVE-2026-27816
CVE-2026-27816
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.
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Affected products
2- Range: <2026.02.0
Patches
Vulnerability mechanics
References
1- github.com/EVerest/EVerest/security/advisories/GHSA-gq54-j8f4-xj8cnvdMitigationVendor Advisory
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