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N750 Wireless Router FirmwareOperating system · Belkin

CVE-2014-1635

HIGH · 10.0 CVSS v2.0 Published 2014-11-12
Fix available
A fix is available. Upgrade to after 1.10.16n or later.
See remediation →
100/100
Remediation priority · Urgent
High EPSS Public exploit 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
Buffer overflow in login.cgi in MiniHttpd in Belkin N750 Router with firmware before F9K1103_WW_1.10.17m allows remote attackers to execute arbitrary code via a long string in the jump parameter.

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

Buffer overflow vulnerability in the MiniHttpd web server's login.cgi script on Belkin N750 routers allows remote attackers to execute arbitrary code by providing an overly long string in the 'jump' parameter. The vulnerability affects firmware versions prior to F9K1103_WW_1.10.17m and can be exploited without authentication.

MitigationUpdate Belkin N750 router firmware to version F9K1103_WW_1.10.17m or later. If firmware updates are unavailable, disable remote web management and restrict access to the administrative interface to trusted internal networks only.

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
N750 Wireless Router FirmwareOperating system
Affected:<= 1.10.16n
N750 Wireless RouterHardware / appliance
Affected:= f9k1103

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
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:L/Au:N/C:C/I:C/A:C

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
    Access the router's web administrative interface and check the status page or look for 'f9k1103' model identifier in the device information
    Affected if The device is not a Belkin N750 (model f9k1103)
  2. Check the firmware version
    Access the router web interface, navigate to the firmware or status page, and locate the firmware version number. Compare against the affected version 1.10.16n
    Affected if Firmware version is 1.10.16n or lower (any version <= 1.10.16n)
  3. Verify remote web management is enabled
    Log into the router admin interface, go to the 'Remote Management' or 'Web Server' settings section, and check if remote access from WAN is permitted
    Affected if Remote web management is enabled and the router is accessible from the internet
  4. Confirm login.cgi endpoint availability
    Attempt to access the login.cgi script via HTTP using the router's public IP or hostname: http://[router-ip]/login.cgi?jump=anything
    Affected if The login.cgi script responds and accepts the 'jump' parameter

The router is affected if it is a Belkin N750 (f9k1103) with firmware version 1.10.16n or lower and remote web management is enabled, allowing unauthenticated remote attackers to exploit the buffer overflow via the login.cgi 'jump' parameter.

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 a release after 1.10.16n
Interim mitigation

Update Belkin N750 router firmware to version F9K1103_WW_1.10.17m or later. If firmware updates are unavailable, disable remote web management and restrict access to the administrative interface to trusted internal networks only.

Recommended fix High confidence

F9K1103_WW_1.10.17m or later

  1. 1. Log in to the Belkin N750 router web interface (typically at 192.168.2.1)
  2. 2. Navigate to Administration > Firmware Upgrade or similar section
  3. 3. Check the current firmware version under System or Status page
  4. 4. Download firmware version F9K1103_WW_1.10.17m or later from the official Belkin support website (www.belkin.com)
  5. 5. In the firmware upgrade section, upload the downloaded firmware file
  6. 6. Wait for the upgrade process to complete - do not power off the router
  7. 7. After reboot, verify the new firmware version is installed
Caveat Firmware upgrade may reset router configuration to defaults; back up configuration before upgrading if possible

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

Fix this in N750 Wireless Router Firmware Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
7.0 hours of engineering $1,240
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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-2014-1635 in production — separate from our analysis above.

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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
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  • No spam, self-promotion, credentials, or personal data