CVE-2018-7937

Severity: high (CVSS 7.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-09-04 · updated 2026-06-17

Description

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.

Affected products

Huawei Hirouter-Cd20 Firmware: before hirouter-cd20-10_1.9.6 — fixed in hirouter-cd20-10_1.9.6
Huawei Ws5200-10 Firmware: before ws5200-10_1.9.6 — fixed in ws5200-10_1.9.6

How to fix

Upgrade to a fixed version: Huawei Hirouter-Cd20 Firmware hirouter-cd20-10_1.9.6; Huawei Ws5200-10 Firmware ws5200-10_1.9.6. Check the vendor advisory for mitigations.

References

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