CVE-2020-11964
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 · uneditedIn IQrouter through 3.3.1, the Lua function diag_set_password in the web-panel allows remote attackers to change the root password arbitrarily. Note: The vendor claims that this vulnerability can only occur on a brand-new network that, after initiating the forced initial configuration (which has a required step for setting a secure password on the system), makes this CVE invalid. This vulnerability is “true for any unconfigured release of OpenWRT, and true of many other new Linux distros prior to being configured for the first time”
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 Lua function `diag_set_password` in the IQrouter web panel (versions up to 3.3.1) allows remote attackers to set an arbitrary root password. However, the vendor clarifies this only affects devices in an unconfigured/factory-default state - once the initial setup wizard is completed with a secure password, the vulnerability is not applicable.
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<= 3.3.1CVSS 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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/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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Identify the device modelAccess the device web panel or check device labeling to confirm it is an Evenroute Iqrouter deviceAffected if Device is not an Evenroute Iqrouter - not affected by this CVE
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Check the firmware versionLog into the IQrouter web panel and navigate to the System or Status page to view the firmware version, or use the command line if accessibleAffected if Firmware version is greater than 3.3.1 - not affected by this CVE
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Determine if initial setup wizard has been completedAccess the IQrouter web panel login page - if it presents an initial configuration wizard or shows a login screen without requiring existing credentials, the device may be in unconfigured stateAffected if The device presents an initial setup wizard or allows password configuration without prior authentication - device is in unconfigured state and IS affected by this CVE if firmware is <= 3.3.1
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Verify configuration state via Lua console or APIIf accessible, examine the Lua environment or system configuration to check for presence of configured admin credentials or settings that indicate initial setup was completedAffected if No admin credentials are configured in the system - device remains in factory-default state and IS affected if firmware version is <= 3.3.1
A device is affected only if it is an Evenroute Iqrouter running firmware version 3.3.1 or earlier AND has not completed the initial setup wizard (still in factory-default/unconfigured state).
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 dataComplete the forced initial configuration process immediately upon device setup and ensure a strong root password is set, as the vendor states this vulnerability only affects unconfigured devices.
- Consultation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2020-11964 — 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-2020-11964 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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