CVE-2001-1293
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 · uneditedBuffer overflow in web server of 3com HomeConnect Cable Modem External with USB (#3CR29223) allows remote attackers to cause a denial of service (crash) via a long HTTP request.
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 confidenceA buffer overflow vulnerability exists in the embedded web server of the 3Com HomeConnect Cable Modem External (3CR29223). The overflow is triggered by sending an excessively long HTTP request to the web server, which causes the device to crash and result in a denial of service.
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 dataall versionsCVSS 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
- Authentication
- None
- Confidentiality
- None
- Integrity
- None
- Availability
- Partial
AV:N/AC:L/Au:N/C:N/I:N/A:P
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 if 3CR29223 device is on the networkScan your network for devices with MAC vendor prefix 00:04:5A (3Com) or perform an inventory check of network-connected hardware. Look for a cable modem matching the 3Com HomeConnect Cable Modem External model 3CR29223.Affected if The device with model number 3CR29223 is present on the network
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Confirm the device model numberAccess the device management interface via its IP address (typically 192.168.100.1 for cable modems) through a web browser, or check the physical device label for model number 3CR29223.Affected if The device identifies itself as 3Com HomeConnect Cable Modem External 3CR29223
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Check if the embedded web server is runningAttempt to access the device's web interface by navigating to its IP address over HTTP (port 80). If a login or status page loads, the web server is active.Affected if The device web interface responds to HTTP requests, indicating the embedded web server is running
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Verify the device is powered on and operationalPing the device's IP address or attempt to access the web interface. If the device responds, it is currently powered on and the vulnerable service could be targeted.Affected if The device responds to network requests, meaning the vulnerable web server could be exploited for denial of service
If the 3Com HomeConnect Cable Modem External (3CR29223) is present on the network with its web interface accessible, the environment is affected by this vulnerability.
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.
From vendor dataSince this is a legacy consumer cable modem from 2001 likely beyond vendor support, practical mitigations include network isolation to restrict access to the device's management interface, or replacement with a current, supported device if the modem remains in production use.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
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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-2001-1293 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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