CVE-2026-27816

CRITICAL 9.1CVE-2026-27816 · Published 26/03/2026 · updated 17/06/2026

In short

CVE-2026-27816 is a CRITICAL (CVSS 9.1) vulnerability.
Chance of exploitation in the next 30 days (EPSS): 0.20%, higher than 10.4% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
—	No affected product versions are listed for this vulnerability yet.

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.

References

EVerest/EVerest security advisory · Mitigation

Running one of these products? Scan your site to see whether it exposes a vulnerable version.

Scan my site free