CVE-2012-3012
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 Arbiter Power Sentinel 1133A device with firmware before 11Jun2012 Rev 421 allows remote attackers to cause a denial of service (Ethernet outage) via unspecified Ethernet traffic that fills a buffer, as demonstrated by a port scan.
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 confidenceBuffer overflow vulnerability in Arbiter Power Sentinel 1133A device firmware allows remote attackers to cause denial of service via unspecified Ethernet traffic that fills a buffer, demonstrated by port scans. The vulnerability affects firmware versions before 11Jun2012 Rev 421, resulting in complete Ethernet outage.
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<= 11jun2012= 1133aCVSS 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
- Complete
AV:N/AC:L/Au:N/C:N/I:N/A:C
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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Check the firmware version on the Arbiter Power Sentinel 1133A deviceAccess the device's web interface or CLI and navigate to the firmware version information page. The version is typically displayed in the system status or about section.Affected if The firmware version displayed is 11Jun2012 or earlier, or shows a revision number below 421
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Verify if the device responds to network scansPerform a port scan against the device using nmap or similar tool on common ports (e.g., 80, 443, 22). Observe if the device becomes unresponsive or loses Ethernet connectivity after the scan.Affected if The device experiences a complete Ethernet outage or becomes unresponsive during or after a port scan
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Check Ethernet interface status on the deviceAccess the device's network status page or CLI and check the Ethernet interface status. Look for indicators of link loss or interface errors.Affected if The Ethernet interface shows no link, constant errors, or complete loss of connectivity
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Confirm device model matches affected productVerify that the device model is specifically Arbiter Power Sentinel 1133A. Check the device label, web interface, or CLI output for the exact model number.Affected if The device model is Arbiter Power Sentinel 1133A and the firmware version is 11Jun2012 or earlier (revision below 421)
The environment is affected if the Arbiter Power Sentinel 1133A device is running firmware version 11Jun2012 or earlier (revision below 421), as demonstrated by device unresponsiveness or Ethernet outages during network activity such as port scans.
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 dataUpgrade Arbiter Power Sentinel 1133A firmware to version 11Jun2012 Rev 421 or later to remediate the buffer overflow vulnerability.
- Consultation4.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2012-3012 — 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-2012-3012 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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