CVE-2026-25857
Last modified
CVE-2026-25857 is a high-severity vulnerability rated 8.6/10 on the CVSS scale. 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. EPSS estimates a 2.82% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Tenda | G300-F Firmware | <= 16.01.14.2 |
References
- https://blog.evan.lat/blog/cve-2026-25857/Exploit, Third Party Advisory
- https://www.vulncheck.com/advisories/tenda-g300-f-command-injection-via-formsetwandiagThird Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Analyzed
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