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Fencer Intel
medium 5.4

CVE-2025-52379 json

Nexxt Solutions NCM-X1800 Mesh Router firmware UV1.2.7 and below contains an authenticated command injection vulnerability in the firmware…

published last yr. modified 4mo ago also EUVD-2025-21451

cvss
5.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
15.7%
EPSS 15.7% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

Nexxt Solutions NCM-X1800 Mesh Router firmware UV1.2.7 and below contains an authenticated command injection vulnerability in the firmware update feature. The /web/um_fileName_set.cgi and /web/um_web_upgrade.cgi endpoints fail to properly sanitize the upgradeFileName parameter, allowing authenticated attackers to execute arbitrary OS commands on the device, resulting in remote code execution.

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CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
total
Assessed
last yr.

Exploit prediction

15.70% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CNA 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.