# CVE-2026-9038: XCharge C6 stack-based buffer overflow in charging controller

Source: https://junglewise.ai/threats/cve-2026-9038-xcharge-c6-stack-based-buffer-overflow-in-charging-controller  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-28. Updated: 2026-05-28  
License: CC BY 4.0 with a link back

CVE-2026-9038 · Severity: info · CVSS 7.6 · Published 2026-05-28

XCharge C6 electric vehicle charging stations are affected by a memory vulnerability in their signal-processing logic. An attacker with physical access to the charging connector can send specially crafted messages to crash the controller or take control of the device. This could lead to unauthorized access to the charger's internal systems, potentially disrupting charging services or compromising the local station's security.

Technologies: [XCharge C6](https://junglewise.ai/threats/technologies/c6). Vendors: [XCharge](https://junglewise.ai/threats/vendors/xcharge).

## Quick answers

**Is CVE-2026-9038 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-9038 being exploited in the wild.

**How severe is CVE-2026-9038?** Informational severity, with a CVSS score of 7.6, published 28 May 2026.

**Which products and versions are affected?** XCharge C6 Versions prior to May 22, 2026.

**Is there a fix for CVE-2026-9038?** A patch was published on 2026-05-22: Firmware update deployed to affected chargers. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-9038 attacked?** It is attacked with physical access, in device firmware.

**Am I affected by CVE-2026-9038?** Check whether you run XCharge C6 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A stack-based buffer overflow (CWE-121) exists in the signal-processing logic of the XCharge C6 charging controller. The vulnerability is triggered when the device receives message fields through the physical charging interface that exceed expected bounds due to insufficient input validation. An attacker with physical access to the charging connector can exploit this to cause memory corruption, potentially leading to arbitrary code execution with elevated privileges. XCharge has reportedly deployed a firmware update to address this issue in all affected chargers as of May 22, 2026.

## Affected products

- XCharge C6 Versions prior to May 22, 2026

## Timeline

- 2026-05-22: patched: Firmware update deployed to affected chargers.
- 2026-05-28: advisory: CISA and NVD published advisory details.

## References

- [https://www.cisa.gov/news-events/ics-advisories/icsa-26-148-08](https://www.cisa.gov/news-events/ics-advisories/icsa-26-148-08)

## Related threats

- [XCharge C6 insecure default credentials in remote management service](https://junglewise.ai/threats/cve-2026-9039-xcharge-c6-insecure-default-credentials-in-remote-management)
- [XCharge C6 firmware update integrity check bypass](https://junglewise.ai/threats/cve-2026-9037-xcharge-c6-firmware-update-integrity-check-bypass)