EUVD-2026-16250CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
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3Description
EVerest is an EV charging software stack. Versions prior to 2026.02.0 have a data race leading to C++ UB (potential memory corruption). This is triggered by an MQTT `everest_external/nodered/{connector}/cmd/switch_three_phases_while_charging` message and results in `Charger::shared_context` / `internal_context` accessed concurrently without lock. Version 2026.02.0 contains a patch.
Analysis
Concurrent access to shared memory in EVerest EV charging software (versions prior to 2026.02.0) enables remote attackers to trigger undefined behavior and potential memory corruption through unauthenticated MQTT messages. The data race condition in Charger::shared_context occurs when processing switch_three_phases_while_charging commands without proper locking, yielding CVSS 8.2 (High) with potential for availability disruption and data integrity impact. …
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Remediation
Within 24 hours: Inventory all EVerest deployments and confirm current versions; document any installations running versions prior to 2026.02.0 and assess network exposure. Within 7 days: Implement network segmentation to restrict MQTT traffic to EVerest systems; disable the switch_three_phases_while_charging command if operationally feasible, or restrict MQTT broker access to trusted sources only. …
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