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AleosOperating system · Sierrawireless

CVE-2018-10251

CRITICAL · 9.8 CVSS v3.0 Published 2018-05-04
Fix available
A fix is available. Upgrade to 4.4.7 / 4.9.3 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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 · unedited
A vulnerability in Sierra Wireless AirLink GX400, GX440, ES440, and LS300 routers with firmware before 4.4.7 and GX450, ES450, RV50, RV50X, MP70, and MP70E routers with firmware before 4.9.3 could allow an unauthenticated remote attacker to execute arbitrary code and gain full control of an affected system, including issuing commands with root privileges.

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 confidence

Unauthenticated remote code execution vulnerability in Sierra Wireless AirLink routers (GX400, GX440, ES440, LS300, GX450, ES450, RV50, RV50X, MP70, MP70E) allowing attackers to execute arbitrary commands with root privileges without any authentication.

MitigationUpdate firmware to version 4.4.7 or later for GX400/GX440/ES440/LS300 models, or version 4.9.3 or later for GX450/ES450/RV50/RV50X/MP70/MP70E models. If patching is not immediately feasible, restrict network access to the router management interfaces.

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
AleosOperating system
Affected:< 4.4.7< 4.9.3

CVSS 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
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:L/PR:N/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify the router model
    Locate the AirLink router model label on the device or check the router web interface (typically at 192.168.1.1) for the model number. Confirm it matches one of the affected models: GX400, GX440, ES440, LS300, GX450, ES450, RV50, RV50X, MP70, or MP70E.
    Affected if The router model is one of the listed affected models.
  2. Check the Aleos firmware version
    Access the router web interface and navigate to the Status or About page to view the firmware version. Alternatively, connect to the router CLI via serial or SSH and run the command to display the firmware version (for example, 'show system info' or similar).
    Affected if The installed Aleos version is below 4.4.7 for GX400/GX440/ES440/LS300 models, or below 4.9.3 for GX450/ES450/RV50/RV50X/MP70/MP70E models.
  3. Verify remote management accessibility
    Determine if the router management interface (web UI or SSH) is accessible from untrusted networks such as the public internet. Check port forwards, firewall rules, or DMZ configurations that expose the router to external access.
    Affected if The router management interface is reachable from untrusted networks without VPN or IP restrictions.
  4. Inspect for unauthorized configuration changes
    Review the router configuration for unexpected port forwards, new user accounts, or modified administrative settings. Check logs for suspicious commands or access from unknown IP addresses.
    Affected if Unauthorized accounts, unexpected configurations, or suspicious remote access entries are found in logs or settings.

You are affected if your router model is in the affected list AND the Aleos firmware version is below the patched versions AND the management interface is exposed to untrusted networks.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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.

dbcve · scoped
Upgrade available Upgrade to 4.4.7 / 4.9.3 or later
Fixed in 4.4.74.9.3
Interim mitigation

Update firmware to version 4.4.7 or later for GX400/GX440/ES440/LS300 models, or version 4.9.3 or later for GX450/ES450/RV50/RV50X/MP70/MP70E models. If patching is not immediately feasible, restrict network access to the router management interfaces.

Recommended fix High confidence

Aleos 4.4.7 or later for GX400/GX440/ES440/LS300; Aleos 4.9.3 or later for GX450/ES450/RV50/RV50X/MP70/MP70E

  1. 1. Identify the specific AirLink router model (GX400, GX440, ES440, LS300, GX450, ES450, RV50, RV50X, MP70, or MP70E)
  2. 2. Check the current firmware version by accessing the router's web interface or using AT commands
  3. 3. Download the appropriate fixed firmware from Sierra Wireless (source.sierrawireless.com) - version 4.4.7 or later for GX400/GX440/ES440/LS300, or version 4.9.3 or later for GX450/ES450/RV50/RV50X/MP70/MP70E
  4. 4. Back up the current router configuration
  5. 5. Access the router's administration interface and navigate to the firmware upgrade section
  6. 6. Upload and apply the new firmware file
  7. 7. Verify the upgrade was successful by confirming the new firmware version
  8. 8. Restore the configuration if needed and verify router functionality
Caveat firmware upgrade may temporarily disrupt connectivity; ensure stable power during upgrade process

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Aleos Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2018-10251 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • 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
  • No spam, self-promotion, credentials, or personal data