CVE-2024-50695Network attack vector

Unauthenticated code execution via unchecked MQTT topics

Published Jan 24, 2025 · Updated Feb 5, 2025

Stack-based buffer overflow in Sungrow WiNet-S WINET-SV200.001.00.P027 and earlier allows remote attackers to execute code via MQTT. The MQTT parser copies topic data into a stack buffer without checking topic bounds, so an oversized topic overwrites adjacent stack memory. An unauthenticated network attacker can trigger remote code execution or crash the WiNet-S device by sending a crafted MQTT message.

CVSS severity8.1
High
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in Sungrow WiNet-S WINET-SV200.001.00.P027 and earlier allows remote attackers to execute code via MQTT. The MQTT parser copies topic data into a stack buffer without checking topic bounds, so an oversized topic overwrites adjacent stack memory. An unauthenticated network attacker can trigger remote code execution or crash the WiNet-S device by sending a crafted MQTT message.

The record

CVE
CVE-2024-50695
Published
Jan 24, 2025
Updated
Feb 5, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-121, T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 5, 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

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.1SungrowCVSS: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.

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No observations available

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

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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