CVE-2016-11056
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 · uneditedCertain NETGEAR devices are affected by anonymous root access. This affects ReadyNAS Surveillance 1.1.1-3-armel and earlier and ReadyNAS Surveillance 1.4.1-3-amd64 and earlier.
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 confidenceThis vulnerability in NETGEAR ReadyNAS Surveillance allows unauthenticated attackers to gain root-level access to affected devices. The issue affects specific firmware versions (1.1.1-3-armel and earlier for ARM builds, 1.4.1-3-amd64 and earlier for AMD64 builds), likely through an authentication bypass or hardcoded credential mechanism that permits anonymous access with administrative privileges.
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<= 1.1.1-3<= 1.4.1-3CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/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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Check the ReadyNAS Surveillance firmware versionAccess the device web interface (typically http://<device-ip>/surveillance) and navigate to System > Settings > Device Information, or use SSH/telnet to connect and run 'cat /etc/version' or 'cat /etc/os-release'Affected if The displayed firmware version is 1.1.1-3 or earlier for ARM builds, or 1.4.1-3 or earlier for AMD64 builds
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Identify the CPU architectureUse SSH/telnet to connect and run 'uname -m' or 'cat /proc/cpuinfo' to determine if the device is ARM (armel) or AMD64 (x86_64)Affected if The device is running an ARM build at version 1.1.1-3 or earlier, or an AMD64 build at version 1.4.1-3 or earlier
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Verify if the admin web interface is network-accessibleAttempt to access the surveillance web portal from an external network location, or check firewall rules using 'iptables -L' or router port forwarding configurationsAffected if Port 80/443 or the surveillance application ports are exposed to untrusted networks without VPN or ACL restrictions
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Check for anonymous admin access possibilityReview if the surveillance application allows unauthenticated access to administrative functions by testing access to the base URL without credentialsAffected if The application accepts requests without authentication and returns administrative content or functionality
Your device is affected if it runs ReadyNAS Surveillance firmware at version 1.1.1-3 or earlier on ARM, or 1.4.1-3 or earlier on AMD64, and the management interface is accessible from a network where untrusted users could connect.
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 available firmware updates from NETGEAR for affected ReadyNAS Surveillance versions. If updates are unavailable, restrict network access to surveillance devices by placing them behind firewalls or VPNs, limiting exposure to untrusted networks.
- Consultation4.0 h
- Implementation2.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,152.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-11056 — 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-2016-11056 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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