Ios XrOperating system · Cisco
CVE-2014-8005
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 · uneditedRace condition in the lighttpd module in Cisco IOS XR 5.1 and earlier on Network Convergence System 6000 devices allows remote attackers to cause a denial of service (process reload) by establishing many TCP sessions, aka Bug ID CSCuq45239.
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 confidenceRace condition in the lighttpd web server module in Cisco IOS XR 5.1 and earlier on Network Convergence System 6000 devices. Remote attackers can trigger the vulnerability by establishing many TCP sessions, causing a process reload and resulting in 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 data
Ios XrOperating system
<= 5.1.0CVSS 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 hardware platformRun 'show platform' or check hardware inventory to confirm the device is a Network Convergence System 6000 (NCS-6000)Affected if Device is not NCS 6000 hardware - this vulnerability only affects NCS 6000 platforms
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Check IOS XR versionRun 'show version' or 'admin show version' to determine the installed Cisco IOS XR versionAffected if IOS XR version is 5.1.0 or earlier (versions 5.1 through the earliest affected release)
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Verify HTTP/HTTPS management is enabledRun 'show http server' or check management interface configuration for active HTTP or HTTPS servicesAffected if HTTP or HTTPS management interface is enabled and accessible from untrusted networks
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Check for process instabilityReview system logs and use 'show process' commands to look for frequent lighttpd or web server process restartsAffected if The lighttpd process or HTTP server process is frequently reloading or crashing
You are affected if you are running Cisco IOS XR version 5.1.0 or earlier on NCS 6000 hardware with the web-based management interface (HTTP/HTTPS) enabled, and you observe unexpected process reloads.
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 Cisco IOS XR to a version newer than 5.1 on NCS 6000 devices. If immediate upgrade is not feasible, consider restricting or rate-limiting incoming TCP connections to the management interfaces.
Fix this in Ios Xr
Scoped from the published advisory
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2014-8005 — 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-2014-8005 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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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