Vulnerability Note VU#561444

Multiple broadband routers use vulnerable versions of Allegro RomPager

Original Release date: 19 Dec 2014 | Last revised: 09 May 2017


Multiple broadband routers use vulnerable versions of Allegro RomPager in current firmware releases.


Many home and office/home office (SOHO) routers have been found to be using vulnerable versions of the Allegro RomPager embedded web server. Allegro RomPager versions prior to 4.34 contain a vulnerability in cookie processing code that can be leveraged to grant attackers administrative privileges on the device. According to Check Point's advisory, the vulnerability was addressed by Allegro in 2005 but is present in current or recent firmware releases of many devices.


A remote, unauthenticated attacker may be able to execute arbitrary code on the device.


Apply an update

Check vendor websites for a firmware update that addresses this issue and apply it if available.

Use third-party firmware

Technical users may consider flashing to third-party firmware such as that provided by dd-wrt, openwrt, or others. Note that this action may invalidate device warranties.

Disable WAN services

If possible, disable services that listen for HTTP or HTTPS connections on the device's WAN side.

Vendor Information (Learn More)

Check Point Software Technologies has published a list of devices (PDF) suspected of being vulnerable. We will update the Vendor Information section below as more information becomes available.

VendorStatusDate NotifiedDate Updated
Digi InternationalAffected-09 May 2017
Allegro Software Development CorporationNot Affected19 Dec 201419 Dec 2014
PeplinkNot Affected-08 Jan 2015
D-Link Systems, Inc.Unknown-19 Dec 2014
Huawei TechnologiesUnknown-19 Dec 2014
LinksysUnknown-19 Dec 2014
NetComm Wireless LimitedUnknown-19 Dec 2014
TP-LINKUnknown19 Dec 201419 Dec 2014
ZTE CorporationUnknown-19 Dec 2014
ZyXELUnknown-19 Dec 2014
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C
Temporal 8.5 E:POC/RL:W/RC:C
Environmental 6.4 CDP:ND/TD:M/CR:ND/IR:ND/AR:ND



Thanks to Shahar Tal of Check Point Software Technologies for reporting this vulnerability.

This document was written by Joel Land.

Other Information

  • CVE IDs: CVE-2014-9222
  • Date Public: 19 Dec 2014
  • Date First Published: 19 Dec 2014
  • Date Last Updated: 09 May 2017
  • Document Revision: 26


If you have feedback, comments, or additional information about this vulnerability, please send us email.