Huawei HiRouter-CD20-10 up to 1.9.5 Plugin-In Signature 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, which was classified as problematic, has been found in Huawei HiRouter-CD20-10 up to 1.9.5 (Router Operating System). Affected by this issue is an unknown code block of the component Plugin-In Signature Handler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In Huawei HiRouter-CD20-10 with the versions before 1.9.6 and WS5200-10 with the versions before 1.9.6, there is a plug-in signature bypass vulnerability due to insufficient plug-in verification. An attacker may tamper with a legitimate plug-in to build a malicious plug-in and trick users into installing it. Successful exploit could allow the attacker to obtain the root permission of the device and take full control over the device.

The bug was discovered 07/27/2018. The weakness was published 09/04/2018 (Website). The advisory is available at This vulnerability is handled as CVE-2018-7937 since 03/08/2018. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 39 days. During that time the estimated underground price was around $5k-$25k.

Upgrading to version 1.9.6 eliminates this vulnerability.

Similar entries are available at VDB-123589 and VDB-123591.







CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
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VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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NVD Base Score: 7.8
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Class: Access control
CWE: CWE-264

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

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Threat Intelligenceinfo

Interest: 🔍
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Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: HiRouter-CD20-10 1.9.6


03/08/2018 🔍
07/27/2018 +140 days 🔍
09/04/2018 +38 days 🔍
09/04/2018 +0 days 🔍
09/05/2018 +1 days 🔍
05/07/2023 +1705 days 🔍



Advisory: sa-20180827-01
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-7937 (🔍)
See also: 🔍


Created: 09/05/2018 07:02 AM
Updated: 05/07/2023 08:51 AM
Changes: 09/05/2018 07:02 AM (60), 03/20/2020 04:17 PM (2), 05/07/2023 08:51 AM (4)
Complete: 🔍
Cache ID: 44:005:40


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