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Security Advisory - Buffer Overflow Vulnerability in Some Huawei Products

  • SA No:huawei-sa-20200401-01-overflow
  • Initial Release Date: 2020.04.01
  • Last Release Date: 2020.04.01

There is a buffer overflow vulnerability in some Huawei products. The vulnerability can be exploited by an attacker to perform remote code execution on the affected products when the affected product functions as an optical line terminal (OLT). (Vulnerability ID: HWPSIRT-2019-09333)

This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2020-9067.

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

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200401-01-overflow-en


Product Name

Affected Version

Resolved Product and Version

SmartAX MA5600T

V800R013C10

Upgrade the version to V800R017C10SPH229 or later.

V800R015C00

Upgrade the version to V800R017C10SPH229 or later.

V800R015C10

Upgrade the version to V800R017C10SPH229 or later.

V800R017C00

Upgrade the version to V800R017C10SPH229 or later.

V800R017C10

Upgrade the version to V800R017C10SPH229 or later.

V800R018C00

Upgrade the version to V800R018C00SPH207 or later.

V800R018C10

Upgrade the version to V800R018C10SPH212 or later.

SmartAX MA5800

V100R017C00

Upgrade the version to V100R019C12SPH208 or later.

V100R017C10

V100R018C00

V100R018C10

Upgrade the version to V100R018C10SPH116 or the global version V100R019C12SPH208 or later.

V100R019C10

Upgrade the version to V100R019C12SPH208 or later.

SmartAX EA5800

V100R018C00

Upgrade the version to V100R019C10SPH208 or later.

V100R018C10

Upgrade the version to V100R018C10SPH116 or the global version V100R019C10SPH208 or later.

V100R019C10

Upgrade the version to V100R019C10SPH208 or later.


Successful exploit may cause remote code execution on the affected products.

The vulnerability classification has been performed by using the CVSSv3 scoring system (http://www.first.org/cvss/specification-document).

Base Score: 8.0 (AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Temporal Score: 7.4 (E:F/RL:O/RC:C)


This vulnerability can be exploited only when the following conditions are present:

1. The affected device functions as an OLT.

Vulnerability details:

There is a buffer overflow vulnerability in some Huawei products. The vulnerability can be exploited by an attacker to perform remote code execution on the affected products when the affected product functions as an OLT.


Customers should contact Huawei TAC (Huawei Technical Assistance Center) to request the upgrades. For TAC contact information, please refer to Huawei worldwide website at http://www.huawei.com/en/psirt/report-vulnerabilities.

This vulnerability was discovered by Huawei internal tester.


2020-04-01 V1.0 INITIAL


Huawei adheres to protecting the ultimate interests of users with best efforts and the principle of responsible disclosure and deal with product security issues through our response mechanism.

To enjoy Huawei PSIRT services and obtain Huawei product vulnerability information, please visit http://www.huawei.com/en/psirt.

To report a security vulnerability in Huawei products and solutions, please send it to PSIRT@huawei.com. For details, please visit http://www.huawei.com/en/psirt/report-vulnerabilities.

This document is provided on an "AS IS" basis and does not imply any kind of guarantee or warranty, either express or implied, including the warranties of merchantability or fitness for a particular purpose. In no event shall Huawei or any of its directly or indirectly controlled subsidiaries or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages. Your use of the document, by whatsoever means, will be totally at your own risk. Huawei is entitled to amend or update this document from time to time.