CVE-2024-4511

Unspecified impact via Message Handler buffer overflow

Published May 6, 2024 · Updated Aug 1, 2024

Buffer overflow in Shanghai Sunfull Automation HMI1002-ARM 2.0.4 allows remote attackers to cause unspecified impact via LAN messages. The public record identifies the Message Handler but does not disclose the routine, input field, or unchecked copy operation that overruns its buffer. An unauthenticated attacker must share an adjacent network with the appliance; the disclosure establishes neither code execution nor a specific crash mode.

CVSS severity6.3
Medium
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in Shanghai Sunfull Automation HMI1002-ARM 2.0.4 allows remote attackers to cause unspecified impact via LAN messages. The public record identifies the Message Handler but does not disclose the routine, input field, or unchecked copy operation that overruns its buffer. An unauthenticated attacker must share an adjacent network with the appliance; the disclosure establishes neither code execution nor a specific crash mode.

The record

CVE
CVE-2024-4511
Published
May 6, 2024
Updated
Aug 1, 2024
Vendor
Shanghai Sunfull Automation Co., Ltd.
Product
SunFull BACnet Server (WEB Gateway)
Classifications
CWE-120
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 2024Record 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=2.0.4

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Shanghai Sunfull Automation Co., Ltd. · SunFull BACnet Server (WEB Gateway)version=2.0.4
Shanghai Sunfull Automation Co., Ltd. · HMI1002-ARMversion=- <=2.0.4

Published CVSS scores

6.3VulDB CNACVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
6.3VulDB CNACVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
5.8VulDB CNAAV:A/AC:L/Au:N/C:P/I:P/A:P

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic 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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