CVE-2026-27816

| EUVD-2026-16226 MEDIUM
2026-03-26 GitHub_M
5.5
CVSS 4.0
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CVSS Vector

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

3
EUVD ID Assigned
Mar 26, 2026 - 16:45 euvd
EUVD-2026-16226
Analysis Generated
Mar 26, 2026 - 16:45 vuln.today
CVE Published
Mar 26, 2026 - 16:32 nvd
MEDIUM 5.5

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.

Analysis

EVerest-Core prior to version 2026.02.0 contains an out-of-bounds write vulnerability in the ISO15118_chargerImpl::handle_update_energy_transfer_modes function, where variable-length MQTT command payloads are copied into a fixed-size 6-element array without bounds checking. When schema validation is disabled by default, oversized payloads trigger memory corruption that can crash the EV charging service or corrupt adjacent EVSE (Electric Vehicle Supply Equipment) state, affecting the integrity and availability of EV charging infrastructure. …

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Remediation

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

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Priority Score

28
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +28
POC: 0

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CVE-2026-27816 vulnerability details – vuln.today

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