CVE-2026-26008Public exploitNetwork attack vector

Remote crash via one-based EVSE vector indexing

Published Mar 26, 2026 · Updated Mar 26, 2026

Out-of-bounds access in EVerest Core before 2026.02.0 allows remote attackers to crash charging-station software over OCPP. The OCPP 2.0.1 UpdateAllowedEnergyTransferModes callback uses a 1-based EVSE ID directly to index the 0-based r_evse_manager vector, reading past its end for the last EVSE. A CSMS that can send the message needs no charger-side user interaction; the demonstrated consequence is a heap-buffer-overflow crash, not data disclosure or modification.

CVSS severity7.5
High
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds access in EVerest Core before 2026.02.0 allows remote attackers to crash charging-station software over OCPP. The OCPP 2.0.1 UpdateAllowedEnergyTransferModes callback uses a 1-based EVSE ID directly to index the 0-based r_evse_manager vector, reading past its end for the last EVSE. A CSMS that can send the message needs no charger-side user interaction; the demonstrated consequence is a heap-buffer-overflow crash, not data disclosure or modification.

The record

CVE
CVE-2026-26008
Published
Mar 26, 2026
Updated
Mar 26, 2026
Vendor
EVerest
Product
EVerest Core
Classifications
CWE-125, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2026.02.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

EVerest · EVerest Coreversion=< 2026.02.0

Published CVSS scores

7.5GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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