CVE-2018-5493
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 · uneditedATTO FibreBridge 7500N firmware versions prior to 2.90 are susceptible to a vulnerability which allows an unauthenticated remote attacker to cause Denial of Service (DoS).
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 confidenceThe ATTO FibreBridge 7500N firmware versions prior to 2.90 contain a vulnerability that allows an unauthenticated remote attacker to send specially crafted requests to the device, causing a Denial of Service condition. This affects the availability of the Fibre Channel to SATA bridge, potentially disrupting storage connectivity.
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< 2.90CVSS 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 modelIdentify the physical or network-attached device to verify it is an ATTO FibreBridge 7500N Fibre Channel to SATA bridge. Check the device label, management interface, or inventory records.Affected if The device is an ATTO FibreBridge 7500N
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Retrieve firmware versionAccess the device management interface (web UI, CLI, SNMP, or ATTO management software) and locate the firmware version information. This is typically displayed in the device status, system information, or firmware upgrade section.Affected if Unable to retrieve version information from the device
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Compare version to vulnerability thresholdCompare the installed firmware version against the affected range. The vulnerability affects all versions prior to 2.90.Affected if The installed firmware version is below 2.90 (for example, 2.80, 2.70, etc.)
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Verify network accessibilityDetermine if the device is network-accessible (has an IP address and is reachable on the network). The vulnerability allows unauthenticated remote attackers to send malicious requests.Affected if The device is network-accessible and running a firmware version below 2.90
A user is affected if they have an ATTO FibreBridge 7500N device running firmware version 2.90 or lower that is network-accessible.
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 data2.90
Upgrade ATTO FibreBridge 7500N firmware to version 2.90 or later to remediate this vulnerability. Organizations should schedule a maintenance window and follow ATTO's firmware update procedures, ensuring configuration backup before upgrading.
- Consultation2.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-5493 — 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-2018-5493 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
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