CVE-2013-7314
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 OSPF implementation on NEC IP38X, IX1000, IX2000, and IX3000 routers does not consider the possibility of duplicate Link State ID values in Link State Advertisement (LSA) packets before performing operations on the LSA database, which allows remote attackers to cause a denial of service (routing disruption) or obtain sensitive packet information via a crafted LSA packet, a related issue to CVE-2013-0149.
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 OSPF implementation on NEC IP38X, IX1000, IX2000, and IX3000 routers fails to validate for duplicate Link State ID values in incoming LSA packets before database operations. Attackers can send crafted LSA packets with duplicate Link State IDs to cause routing disruption (DoS) or potentially extract sensitive routing information from the OSPF database.
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 versionsall versionsall versionsall versionsall versionsall versionsall versionsall 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
- M
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:M/Au:N/C:P/I:P/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 the router modelAccess the device CLI or web interface and run 'show system' or check the device label/hardware sticker to confirm the exact model number (e.g., NEC Ip38x 1000, IX1000, IX2000, IX3000)Affected if The model is any of: Nec Ip38x 1000, Ip38x 105, Ip38x 107e, Ip38x 1100, Ip38x 1200, Ip38x 140, Ip38x 1500, Ip38x 2000, IX1000, IX2000, or IX3000
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Confirm OSPF protocol is enabledIn the device CLI, run 'show ip ospf' or check the OSPF configuration via 'show running-config' to verify OSPF process is activeAffected if OSPF is enabled and the router is participating in OSPF routing
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Verify OSPF interface participationRun 'show ip ospf interface' to list all interfaces where OSPF is enabled and activeAffected if Any interface has OSPF enabled, making the device vulnerable to malformed LSA packets
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Check OSPF authentication configurationRun 'show ip ospf interface' and look for 'Authentication' field, or inspect the OSPF configuration for 'ip ospf authentication' settings on each OSPF-enabled interfaceAffected if OSPF authentication is NOT configured (null/authentication disabled), meaning the device accepts unauthenticated OSPF packets
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Review OSPF database for anomaliesRun 'show ip ospf database' to display the Link State Database; look for duplicate Link State IDs or unexpected LSA types that may indicate exploitation attemptsAffected if Duplicate Link State IDs appear in the OSPF database, indicating possible exploitation of this vulnerability
If the device is a NEC IP38X, IX1000, IX2000, or IX3000 router with OSPF enabled and OSPF authentication is not configured, 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 dataApply vendor firmware updates when available. Until then, enforce OSPF message authentication (MD5 or HMAC) to prevent injection of malicious LSA packets, and implement network segmentation to limit attack surface.
- Consultation6.0 h
- Implementation12.0 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-2013-7314 — 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-2013-7314 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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- Version or environment caveats, and links to real fixes
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