VULNERABILITY INTELLIGENCE

CVE-2021-25811

CVSS score7.5 HIGH

EPSS probability1.63%

CISA KEVNot currently listed

Published2021-04-29

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Weakness classification

nvd@nist.gov: NVD-CWE-noinfo

Primary references

cve@mitre.org — Broken Link
cve@mitre.org — Product, Vendor Advisory
cve@mitre.org — Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Broken Link
af854a3a-2127-422b-91ae-364da2661108 — Product, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory