Huawei USG5500 V300R001C00/V300R001C00 Anti-DDoS Module Backend access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability was found in Huawei USG5500 V300R001C00/V300R001C00. It has been rated as problematic. Affected by this issue is some unknown processing of the component Anti-DDoS Module. The manipulation with an unknown input leads to a access control vulnerability (Backend). Using CWE to declare the problem leads to CWE-284. The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is availability. CVE summarizes:

Huawei USG5500 with software V300R001C00 and V300R001C00 allows attackers to bypass the anti-DDoS module of the USGs to cause a denial of service condition on the backend server.

The bug was discovered 10/26/2016. The weakness was shared 04/02/2017 with NIST (Website). The advisory is shared for download at This vulnerability is handled as CVE-2016-8798 since 10/18/2016. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 11/24/2022). The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability was handled as a non-public zero-day exploit for at least 158 days. During that time the estimated underground price was around $5k-$25k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.




CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍


Name: Backend
Class: Access control / Backend
CWE: CWE-284 / CWE-266
ATT&CK: T1068

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍


10/18/2016 🔍
10/26/2016 +8 days 🔍
10/26/2016 +0 days 🔍
04/02/2017 +158 days 🔍
04/02/2017 +0 days 🔍
04/03/2017 +1 days 🔍
11/24/2022 +2061 days 🔍



Advisory: sa-20161026-01
Organization: NIST
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-8798 (🔍)
SecurityFocus: 93891 - Huawei USG Products CVE-2016-8798 Security Bypass Vulnerability
OSVDB: - CVE-2016-8798 - Huawei - USG5500 - Denial of Service Issue


Created: 04/03/2017 09:09 AM
Updated: 11/24/2022 03:41 PM
Changes: 04/03/2017 09:09 AM (64), 08/25/2020 10:10 AM (1), 11/24/2022 03:41 PM (3)
Complete: 🔍


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