CVE-2026-9037Network attack vector

High-privilege code execution via unsigned firmware updates

Published May 28, 2026 · Updated May 28, 2026

Missing firmware integrity validation in XCharge C6 before May 22, 2026 allows remote attackers to execute high-privilege code. The charging controller installs firmware packages delivered through its management interface without verifying their cryptographic signatures. Interfering with or impersonating the management channel is sufficient to replace trusted firmware with attacker-controlled code on the device.

CVSS severity9.3
Critical
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing firmware integrity validation in XCharge C6 before May 22, 2026 allows remote attackers to execute high-privilege code. The charging controller installs firmware packages delivered through its management interface without verifying their cryptographic signatures. Interfering with or impersonating the management channel is sufficient to replace trusted firmware with attacker-controlled code on the device.

The record

CVE
CVE-2026-9037
Published
May 28, 2026
Updated
May 28, 2026
Vendor
XCharge
Product
C6
Classifications
CWE-494, T1601.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 28, 2026CVE publishedPublication date reported by the CVE source.
  2. May 28, 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=0 <May_22_2026

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

XCharge · C6version=0 <May_22_2026

Published CVSS scores

9.3ICS-CERTCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-494Download of Code Without Integrity Check
T1601.001Patch System Image

Public exploit references

No public exploit references are available in this record.

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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