CVE-2003-0576
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 · uneditedUnknown vulnerability in the NFS daemon (nfsd) in SGI IRIX 6.5.19f and earlier allows remote attackers to cause a denial of service (kernel panic) via certain packets that cause XDR decoding errors, a different vulnerability than CVE-2003-0619.
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 NFS daemon (nfsd) in SGI IRIX 6.5.19f and earlier contains an unknown vulnerability where remote attackers can send specially crafted packets that cause XDR (External Data Representation) decoding errors, resulting in a kernel panic and 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= 6.5= 6.5.1= 6.5.2= 6.5.3= 6.5.4= 6.5.5= 6.5.6= 6.5.7= 6.5.8= 6.5.9= 6.5.10= 6.5.11CVSS 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 the operating systemRun 'uname -a' or 'uname -sr' to confirm the system is running SGI IRIXAffected if The OS is anything other than SGI IRIX, as this vulnerability only affects IRIX 6.5.x
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Check the IRIX versionRun 'uname -r' or 'cat /usr/bin/oslevel' to determine the exact IRIX version numberAffected if The version is 6.5 through 6.5.11 inclusive, as these versions contain the vulnerable nfsd code
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Determine if NFS daemon is runningRun 'ps -ef | grep nfsd' or check system service status for nfsd processesAffected if The nfsd process is actively running, as the vulnerability requires the NFS daemon to be executing to process the malicious packets
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Verify NFS network exposureCheck if NFS ports (typically 2049/TCP or 2049/UDP) are listening using 'netstat -an' or 'rpcinfo -p'Affected if The NFS service is bound to network-accessible interfaces, allowing remote attackers to send the specially crafted XDR packets
A system is affected only if it is running SGI IRIX version 6.5 through 6.5.11, has the NFS daemon (nfsd) actively running, and has NFS exposed to network access where remote attackers can reach it.
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 dataGiven this is a legacy IRIX system, primary mitigations include restricting or disabling NFS access via firewall rules, network segmentation, or applying any available SGI patches; given the age of this vulnerability and OS, vendor support may be unavailable, making network-based controls the primary mitigation option.
- Consultation4.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2003-0576 — 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-2003-0576 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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