CVE-2026-9038

Elevated code execution via oversized charging messages

Published May 28, 2026 · Updated May 28, 2026

Stack-based buffer overflow in XCharge C6 before May 22, 2026 allows physically proximate attackers to execute code with elevated privileges. The charging controller’s signal-processing logic fails to reject oversized message fields received through the charging interface, corrupting stack memory. Physical access to the charging connector is required, and successful exploitation runs unauthorized code with elevated privileges on the charger.

CVSS severity8.6
High
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in XCharge C6 before May 22, 2026 allows physically proximate attackers to execute code with elevated privileges. The charging controller’s signal-processing logic fails to reject oversized message fields received through the charging interface, corrupting stack memory. Physical access to the charging connector is required, and successful exploitation runs unauthorized code with elevated privileges on the charger.

The record

CVE
CVE-2026-9038
Published
May 28, 2026
Updated
May 28, 2026
Vendor
XCharge
Product
C6
Classifications
CWE-121
Attack vector
physical
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 vectorphysical
Required privilegesunauthenticated

What is affected?

XCharge · C6version=0 <May_22_2026

Published CVSS scores

8.6ICS-CERTCVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA: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.

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No observations available

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

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow

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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