# CVE-2026-8987: Autel MaxiCharger Single heap overflow in set_ap_param command

Source: https://junglewise.ai/threats/cve-2026-8987-autel-maxicharger-single-heap-overflow-in-set-ap-param-command  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-21. Updated: 2026-07-22  
License: CC BY 4.0 with a link back

CVE-2026-8987 · Severity: info · CVSS 9.4 · Published 2026-07-21

Autel MaxiCharger Single electric vehicle charging stations are affected by a memory corruption vulnerability. An attacker with valid credentials can send specially crafted commands to the device to cause a system crash or potentially take full control of the charger. This could lead to service disruptions, unauthorized configuration changes, or a complete loss of control over the charging infrastructure.

Technologies: [Autel MaxiCharger Single](https://junglewise.ai/threats/technologies/maxicharger-single). Vendors: [Autel](https://junglewise.ai/threats/vendors/autel).

## Quick answers

**Is CVE-2026-8987 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-8987 being exploited in the wild.

**How severe is CVE-2026-8987?** Informational severity, with a CVSS score of 9.4, published 21 July 2026.

**Which products and versions are affected?** Autel MaxiCharger Single through V1.03.51.

**Is there a fix for CVE-2026-8987?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-8987 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-8987?** Check whether you run Autel MaxiCharger Single 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 heap-based buffer overflow (CWE-122) exists in the Autel MaxiCharger Single firmware up to version V1.03.51. The vulnerability is located within the 'set_ap_param' command processing logic of the '/localcfg' HTTP endpoint. An authenticated attacker can exploit this by sending a crafted POST request containing oversized input data, leading to heap memory corruption. Successful exploitation can result in a denial-of-service (DoS) condition via a system crash or potentially arbitrary code execution (RCE) with the privileges of the web service. While authentication is required, other vulnerabilities in the same advisory (such as CVE-2026-8982 or CVE-2026-8983) may allow attackers to obtain the necessary credentials or bypass authentication entirely.

## Affected products

- Autel MaxiCharger Single through V1.03.51

## Timeline

- 2026-07-21: advisory: NVD publication date
- 2026-09-06: disclosed: CyberDanube research publication date

## References

- [https://cyberdanube.com/security-research/multiple-vulnerabilities-in-autel-maxi-charger/](https://cyberdanube.com/security-research/multiple-vulnerabilities-in-autel-maxi-charger/)

## Related threats

- [Autel MaxiCharger Single unrestricted recovery mode access via hardware pins](https://junglewise.ai/threats/cve-2026-8989-autel-maxicharger-single-unrestricted-recovery-mode-access-via)
- [Autel MaxiCharger Single bootloader access via UART interface](https://junglewise.ai/threats/cve-2026-8988-autel-maxicharger-single-bootloader-access-via-uart-interface)
- [Autel MaxiCharger Single OS command injection in OCPP GetDiagnostics](https://junglewise.ai/threats/cve-2026-8986-autel-maxicharger-single-os-command-injection-in-ocpp)
- [Autel MaxiCharger Single OS command injection in /test endpoint](https://junglewise.ai/threats/cve-2026-8985-autel-maxicharger-single-os-command-injection-in-test-endpoint)
- [Autel MaxiCharger Single unauthenticated RCE in port 9002 service](https://junglewise.ai/threats/cve-2026-8984-autel-maxicharger-single-unauthenticated-rce-in-port-9002-service)