7.8
Advisory Published
Updated

CVE-2021-25811

First published: Thu Apr 29 2021(Updated: )

MERCUSYS Mercury X18G 1.0.5 devices allow Denial of service via a crafted value to the POST listen_http_lan parameter. Upon subsequent device restarts after this vulnerability is exploted the device will not be able to access the webserver unless the listen_http_lan parameter to uhttpd.json is manually fixed.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Mercusys Mercury X18g Firmware=1.0.5
MERCUSYS Mercury X18G

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Frequently Asked Questions

  • What is the vulnerability ID?

    The vulnerability ID is CVE-2021-25811.

  • What is the title of the vulnerability?

    The title of the vulnerability is 'MERCUSYS Mercury X18G 1.0.5 devices allow Denial of service via a crafted value to the POST listen_http_lan parameter'.

  • What is the severity of CVE-2021-25811?

    The severity of CVE-2021-25811 is high with a severity value of 7.5.

  • How can the vulnerability be exploited?

    The vulnerability can be exploited by sending a crafted value to the POST listen_http_lan parameter, which causes a denial of service on affected devices.

  • Is there a fix available for CVE-2021-25811?

    There is no information available regarding a fix for CVE-2021-25811. It is recommended to follow the official sources for updates and patches.

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