CVE-2026-25857

8.8 HIGH
Published: February 07, 2026 Modified: March 05, 2026
View on NVD

Description

Tenda G300-F router firmware version 16.01.14.2 and prior contain an OS command injection vulnerability in the WAN diagnostic functionality (formSetWanDiag). The implementation constructs a shell command that invokes curl and incorporates attacker-controlled input into the command line without adequate neutralization. As a result, a remote attacker with access to the affected management interface can inject additional shell syntax and execute arbitrary commands on the device with the privileges of the management process.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://blog.evan.lat/blog/cve-2026-25857/
Source: disclosure@vulncheck.com
Exploit Third Party Advisory
https://www.tendacn.com/material/show/736333682028613
Source: disclosure@vulncheck.com
Product
https://www.vulncheck.com/advisories/tenda-g300-f-command-injection-via-formsetwandiag
Source: disclosure@vulncheck.com
Third Party Advisory VDB Entry

3 reference(s) from NVD

Quick Stats

CVSS v3 Score
8.8 / 10.0
EPSS (Exploit Probability)
0.4%
60th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

tenda