CVEvulnerability
CVE-2021-25811
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-04-29
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 7.8 HIGH — AV:N/AC:L/Au:N/C:N/I:N/A:C
Description
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.
Affected configurations
• mercusys mercury x18g firmware 1.0.5
References
- https://github.com/pokerfacett/MY_REQUEST/blob/master/Mercury%20Router%20X18g%20v1.0.5%20Denial%20of%20Service.md Broken Link
- https://www.mercurycom.com.cn/product-521-1.html Product, Vendor Advisory
- https://www.mercusys.com/en/ Vendor Advisory
- https://github.com/pokerfacett/MY_REQUEST/blob/master/Mercury%20Router%20X18g%20v1.0.5%20Denial%20of%20Service.md Broken Link
- https://www.mercurycom.com.cn/product-521-1.html Product, Vendor Advisory
- https://www.mercusys.com/en/ Vendor Advisory