CVE-2026-27815— EVerest: ISO15118 session_setup payment options overflow can corrupt EVSE state
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I. Basic Information for CVE-2026-27815
Vulnerability Information
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Vulnerability Title
EVerest: ISO15118 session_setup payment options overflow can corrupt EVSE state
Source: NVD (National Vulnerability Database)
Vulnerability Description
EVerest is an EV charging software stack. Prior to versions to 2026.02.0, ISO15118_chargerImpl::handle_session_setup copies a variable-length payment_options list into a fixed-size array of length 2 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存写
Source: NVD (National Vulnerability Database)
Vulnerability Title
EVerest 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
EVerest是EVerest开源的一个电动汽车充电桩的固件。 EVerest 2026.02.0之前版本存在缓冲区错误漏洞，该漏洞源于ISO15118_chargerImpl::handle_session_setup函数将可变长度列表复制到固定大小数组时未进行边界检查，可能导致越界写入、损坏相邻状态或进程崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| EVerest | everest-core | < 2026.02.0 | - |
II. Public POCs for CVE-2026-27815
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · EVerest · 2026-03-26 · 18 CVEs total
| CVE-2026-22790 | 8.8 HIGH | EVerest's unchecked SLAC payload length causes stack overflow in HomeplugMessage::setup_pa |
| CVE-2026-22593 | 8.4 HIGH | EVerest has off-by-one stack buffer overflow in IsoMux certificate filename parsing |
| CVE-2026-23995 | 8.4 HIGH | EVerest has stack buffer overflow in ifreq.ifr_name when interface name exceeds IFNAMSIZ |
| CVE-2026-33009 | 8.2 HIGH | EVerest: MQTT Switch-Phases Command Data Race Causing Charger State Corruptio |
| CVE-2026-26008 | 7.5 HIGH | EVerest has OOB via EVSE ID Indexing Mismatch in OCPP 2.0.1 UpdateAllowedEnergyTransferMod |
| CVE-2026-26074 | 7.0 HIGH | EVerest: OCPP201 startup event_queue lock mismatch leads to std::map/std::queue data race |
| CVE-2026-26073 | 5.9 MEDIUM | EVerest: OCPP 1.6 heap corruption caused by lock-free insertion in event_queue |
| CVE-2026-27813 | 5.3 MEDIUM | EVerest has use-after-free in auth timeout timer via race condition |
| CVE-2026-33015 | 5.2 MEDIUM | EVerest has RemoteStop Bypass via BCB Toggle Session Restart |
| CVE-2026-33014 | 5.2 MEDIUM | EVerest has Delayed Authorization Response Bypasses Termination After RemoteStop |
| CVE-2026-29044 | 5.0 MEDIUM | EVerest: Charging Continues When WithdrawAuthorization Is Processed Before TransactionStar |
| CVE-2026-26070 | 4.6 MEDIUM | EVerest: OCPP 2.0.1 EV SoC Update Race Causes Charge Point Crash |
| CVE-2026-27814 | 4.2 MEDIUM | EVerest EvseManager phase-switch path has unsynchronized shared-state access race conditio |
| CVE-2026-26071 | 4.2 MEDIUM | EVerest: OCPP 2.0.1 EVCCID Data Race Leads to Heap Use‑After‑Free |
| CVE-2026-26072 | 4.2 MEDIUM | EVerest has race-condition-induced std::map corruption in OCPP 1.6 evse_soc_map |
| CVE-2026-27816 | EVerest's ISO15118 update_energy_transfer_modes overflow can corrupt EVSE state | |
| CVE-2026-27828 | EVerest: ISO15118 session_setup use-after-free can crash EVSE process |
IV. Related Vulnerabilities
Same product: everest-core
- CVE-2026-33015
EVerest has RemoteStop Bypass via BCB Toggle Session Restart - CVE-2026-33014
EVerest has Delayed Authorization Response Bypasses Terminat - CVE-2026-33009
EVerest: MQTT Switch-Phases Command Data Race Causing Charge - CVE-2026-29044
EVerest: Charging Continues When WithdrawAuthorization Is Pr - CVE-2026-27828
EVerest: ISO15118 session_setup use-after-free can crash EVS
Same vendor: EVerest
- CVE-2026-33015
EVerest has RemoteStop Bypass via BCB Toggle Session Restart - CVE-2026-33014
EVerest has Delayed Authorization Response Bypasses Terminat - CVE-2026-33009
EVerest: MQTT Switch-Phases Command Data Race Causing Charge - CVE-2026-29044
EVerest: Charging Continues When WithdrawAuthorization Is Pr - CVE-2026-27828
EVerest: ISO15118 session_setup use-after-free can crash EVS
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