CVE-2021-23241

MEDIUM NUCLEI

MERCUSYS Mercury X18G 1.0.5 - Path Traversal

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2021-23241 has a Nuclei detection template available — see the Nuclei card below for the Shodan/FOFA recon queries.

Description

MERCUSYS Mercury X18G 1.0.5 devices allow Directory Traversal via ../ in conjunction with a loginLess or login.htm URI (for authentication bypass) to the web server, as demonstrated by the /loginLess/../../etc/passwd URI.

Nuclei Templates (1)

MERCUSYS Mercury X18G 1.0.5 Router - Local File Inclusion
MEDIUMby daffainfo

References (3)

Core 3
Core References
Vendor Advisory x_refsource_misc
https://www.mercusys.com/en/
Product, Vendor Advisory x_refsource_misc
https://www.mercurycom.com.cn/product-521-1.html

Scores

CVSS v3 5.3
EPSS 0.1344
EPSS Percentile 95.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Details

CWE
CWE-22
Status published
Products (1)
mercusys/mercury_x18g_firmware 1.0.5
Published Jan 07, 2021
Tracked Since Feb 18, 2026