CVE-2025-3713
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 · uneditedThe LCD KVM over IP Switch CL5708IM has a Heap-based Buffer Overflow vulnerability in firmware versions prior to v2.2.215, allowing unauthenticated remote attackers to exploit this vulnerability to perform a denial-of-service attack.
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 · high confidenceThe LCD KVM over IP Switch CL5708IM contains a heap-based buffer overflow vulnerability in firmware versions prior to v2.215, allowing unauthenticated remote attackers to send specially crafted packets that overflow heap memory buffers, causing the device to crash and perform a denial-of-service attack.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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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Confirm device model is CL5708IMAccess the device's web interface, console, or check the physical device label to verify the model number is exactly CL5708IMAffected if The device model is CL5708IM
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Retrieve the current firmware versionLog into the device's admin interface or console and navigate to the firmware/version information section, or use the device's 'show version' or 'system info' command via console/SSHAffected if The firmware version cannot be determined or is not displayed
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Compare firmware version to v2.215Compare the installed firmware version string to the affected range: any version prior to v2.215 (or v2.2.215) is vulnerable. Note that version numbering may appear as 2.2.15 or 2.215 - treat both as prior to the patched releaseAffected if The firmware version is lower than v2.215 (or v2.2.215)
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Verify remote network accessibilityConfirm the device has an active IP address and network services enabled (HTTP/HTTPS, TCP ports for KVM over IP). Check if the device is reachable from untrusted networksAffected if The device is network-accessible and has remote management services enabled
The device is affected if it is a CL5708IM model running firmware version lower than v2.215 (or v2.2.215) and has network remote access enabled, making it reachable for the specially crafted packet attack.
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 · scopedUpdate the device firmware to version v2.2.215 or later to patch the heap-based buffer overflow vulnerability.
v2.2.215
- 1. Access the CL5708IM device management interface and check the current firmware version under System Information or Administration settings
- 2. Download firmware version v2.2.215 or later from ATEN International's official support website
- 3. Access the firmware upgrade section in the device web UI (typically under Administration > Firmware Upgrade)
- 4. Upload the downloaded firmware file and initiate the upgrade process
- 5. Wait for the upgrade to complete and the device to reboot automatically
- 6. Verify the new firmware version is v2.2.215 or later in the System Information page
- 7. Test basic KVM functionality to confirm normal operation
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation2.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-3713 — 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-2025-3713 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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