CVE-2024-50695
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedSunGrow WiNet-SV200.001.00.P027 and earlier versions is vulnerable to stack-based buffer overflow when parsing MQTT messages, due to missing MQTT topic bounds checks.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceStack-based buffer overflow vulnerability in SunGrow WiNet-SV200 devices (firmware 001.00.P027 and earlier) allows remote code execution via specially crafted MQTT messages due to missing bounds checking on MQTT topic fields during message parsing.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 200.001.00.p027CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify the device modelLocate the device label or access the device management interface to confirm the model is SunGrow WiNet-SV200 or WiNet-S series gatewayAffected if Device is a SunGrow WiNet-SV200 or compatible WiNet-S model
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Check the installed firmware versionAccess the device web interface or use the vendor management tool to view the firmware version informationAffected if Firmware version is below 200.001.00.p027 (or displays as 001.00.P027 or earlier)
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Verify MQTT service statusCheck the device configuration or network services to determine if the MQTT client or broker functionality is enabledAffected if MQTT service is active and configured on the device
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Inspect MQTT topic configurationReview MQTT settings in the device management interface to see the configured topic fields and message handling parametersAffected if MQTT is enabled with topic subscription fields that accept external input
The environment is affected if the device is a SunGrow WiNet-SV200 or WiNet-S running firmware below version 200.001.00.p027 with MQTT functionality enabled.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped200.001.00.p027
Apply vendor firmware patch when available; as an interim measure, isolate affected devices on a restricted network segment and block untrusted MQTT connections.
200.001.00.P027
- 1. Identify the SunGrow WiNet-S device on your network and note its current firmware version
- 2. Download firmware version 200.001.00.P027 or later from the official SunGrow support portal at en.sungrowpower.com
- 3. Review the official firmware upgrade instructions provided by SunGrow for the WiNet-S device
- 4. Upload the new firmware to the WiNet-S device following the vendor's documented upgrade procedure
- 5. After upgrading, verify that the device is running firmware version 200.001.00.P027 or later
- 6. Confirm the MQTT broker configuration is still functioning correctly after the upgrade
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation8.0 h
- Implementation16.0 h
- Testing8.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-50695 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2024-50695 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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