CVE-2026-24003: medium-severity vulnerability in everest-core
EvseV2G has sequence state validation bypass
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.3epss 0.3%
EVerest is an EV charging software stack. In versions up to and including 2025.12.1, it is possible to bypass the sequence state verification including authentication, and send requests that transition to forbidden states relative to the current one, thereby updating the current context with illegitimate data.cThanks to the modular design of EVerest, authorization is handled in a separate module and EVSEManager Charger internal state machine cannot transition out of the `WaitingForAuthentication` state through ISO 15118-2 communication. From this state, it was however possible through ISO 15118-2 messages which are published to the MQTT server to trick it into preparing to charge, and even to prepare to send current. The final requirement to actually send current to the EV was the closure of the contactors, which does not appear to be possible without leaving the `WaitingForAuthentication` state and leveraging ISO 15118-2 messages. As of time of publication, no fixed versions are available.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected products
EVerest · everest-coreRelated CVEs — everest-core
In the same product, most dangerous first.
CVE-2025-68137HIGHEVerest's Integer Overflow and Signed to Unsigned conversion lead to either stack buffer overflow or infinite loopEPSS 1.3%CVE-2024-37310CRITICALEVerest has an integer overflow in the "v2g_incoming_v2gtp" function EPSS 0.7%CVE-2026-22790HIGHEVerest's unchecked SLAC payload length causes stack overflow in HomeplugMessage::setup_payloadEPSS 0.6%CVE-2025-68133HIGHEVerest's unlimited connections can lead to DoS through operating system resource exhaustionEPSS 0.4%CVE-2026-26008HIGHEVerest has OOB via EVSE ID Indexing Mismatch in OCPP 2.0.1 UpdateAllowedEnergyTransferModesEPSS 0.4%CVE-2025-68135MEDIUMEVerest's inadequate exception handling leads to denial of serviceEPSS 0.3%