CVE-2024-50697Network attack vector

Remote code execution via MQTT TLV overflow

Published Jan 24, 2025 · Updated Jan 27, 2025

Buffer overflow in Sungrow WiNet-S WINET-SV200.001.00.P027 and earlier allows remote attackers to execute code via MQTT messages. The MQTT decryption path parses specific TLV fields without sufficient bounds checks, permitting field data to overrun a stack buffer. Network access to MQTT handling is sufficient; exploitation can execute code with device control or interrupt service.

CVSS severity8.1
High
EPSS probability0.45%
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 Sungrow WiNet-S WINET-SV200.001.00.P027 and earlier allows remote attackers to execute code via MQTT messages. The MQTT decryption path parses specific TLV fields without sufficient bounds checks, permitting field data to overrun a stack buffer. Network access to MQTT handling is sufficient; exploitation can execute code with device control or interrupt service.

The record

CVE
CVE-2024-50697
Published
Jan 24, 2025
Updated
Jan 27, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Jan 27, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.1SungrowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
8.1CISA-ADPCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1210Exploitation of Remote Services

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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