CVE-2000-0261
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 AVM KEN! web server allows remote attackers to read arbitrary files via a .. (dot dot) attack.
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 AVM KEN! web server fails to properly sanitize user-supplied input in HTTP requests, allowing attackers to use directory traversal sequences ('../') to access files outside the web root directory. This path traversal vulnerability enables unauthenticated remote attackers to read sensitive system files.
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= 1.3.10= 1.4.30CVSS 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
- Partial
- Integrity
- None
- Availability
- None
AV:N/AC:L/Au:N/C:P/I:N/A:N
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 AVM KEN! installationCheck for KEN! installation by searching for the software in installed programs or looking for KEN! related processes running on the systemAffected if AVM KEN! software is found running on the system
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Identify KEN! versionUse system tools to query the installed version of KEN! (such as checking program files directory, registry, or version info of KEN! executables)Affected if The installed version matches 1.3.10 or 1.4.30 exactly
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Verify web server component is enabledDetermine if the KEN! web server feature is active and listening on network ports (typically HTTP port 80 or configured web ports)Affected if The KEN! web server is running and accessible over the network
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Test for path traversal vulnerabilitySend an HTTP request with directory traversal sequences to the web server, such as GET /..//..//..//etc/passwd HTTP/1.1 or similar ../ patterns to attempt accessing files outside the web rootAffected if The server returns content from files outside the intended web root directory
A system is affected if AVM KEN! versions 1.3.10 or 1.4.30 are installed with the web server component enabled and accessible, as the path traversal vulnerability allows unauthenticated remote attackers to read sensitive system files.
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 dataImplement strict input validation that rejects paths containing traversal sequences (..), normalize the requested path, and ensure the web server runs with minimal file system permissions.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2000-0261 — 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-2000-0261 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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