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Security Advisory - Out of Bounds Read Vulnerability in Some Huawei Products

  • SA No:huawei-sa-20200311-01-buffer
  • Initial Release Date: Mar 11, 2020
  • Last Release Date: Mar 11, 2020

There is an out-of-bounds read vulnerability in some Huawei products. Due to a logical flaw in a JSON parsing routine, a remote, unauthenticated attacker could exploit this vulnerability to disrupt service in the affected products. (Vulnerability ID: HWPSIRT-2018-12378)

This vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID:  CVE-2020-1863.

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-20200311-01-buffer-en


Product Name

Affected Version

Resolved Product and Version

USG6000V

V500R001C20SPC300

Upgrade to V500R005C10SPC300

V500R003C00SPC100

V500R005C00SPC100


An attacker may exploit the vulnerability to disrupt service in the affected products.


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

Base Score: 5.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

Temporal Score: 4.9 (E:F/RL:O/RC:C)

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

1. The attacker gains the access of the affected products network.

Vulnerability details:

There is an out-of-bounds read vulnerability in some Huawei products. Due to a logical flaw in a JSON parsing routine, a remote, unauthenticated attacker could exploit this vulnerability to disrupt service in the affected products.


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.


2020-03-11 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.