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Security Advisory - Input Validation Vulnerability in Huawei AR3200

  • SA No:huawei-sa-20160406-01-ar
  • Initial Release Date: Apr 06, 2016
  • Last Release Date: Apr 06, 2016

There is an input validation vulnerability in Huawei AR3200, which allows an attacker who logs into the device to send malformed packets, causing the AR3200 occasionally restart and a Denial of Service. (Vulnerability ID: HWPSIRT-2015-10047)


This vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID: CVE-2016-3950.


Huawei has released software updates to fix these vulnerabilities. This advisory is available at the following link:

Product Name

Affected Version

Resolved Product and Version



Upgrade to V200R006C10SPC300



An attacker can exploit this vulnerability to make the AR3200 restart.

The vulnerability classification has been performed by using the CVSSv2 scoring system (

Base Score: 6.5 (AV:N/AC:L/Au:S/C:P/I:P/A:P)

Temporal Score: 5.4 (E:F/RL:O/RC:C)

1. Prerequisite:

The attacker logs in to the AR3200 as a user;

2. Attacking procedure:

The attacker craft malformed packet with a particular value in some field, as for the lacking of input validation, it is possible to cause the device to restart.

Customers should contact Huawei TAC (Huawei Technical Assistance Center) to request the upgrades. For TAC contact information, please refer to Huawei worldwide website at

This vulnerability was discovered by Huawei internal tester.
2016-04-06 V1.0 INITIAL

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