CVE-2025-70327

CRITICAL

9.8

Description

TOTOLINK X5000R v9.1.0cu_2415_B20250515 contains an argument injection vulnerability in the setDiagnosisCfg handler of the /usr/sbin/lighttpd executable. The ip parameter is retrieved via websGetVar and passed to a ping command through CsteSystem without validating if the input starts with a hyphen (-). This allows remote authenticated attackers to inject arbitrary command-line options into the ping utility, potentially leading to a Denial of Service (DoS) by causing excessive resource consumption or prolonged execution.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published2/23/2026

Last Modified2/26/2026

Sourcenvd

Honeypot Sightings0

Affected Products

totolink:x5000rtotolink:x5000r_firmware

Weaknesses (CWE)

CWE-88CWE-400

References

https://github.com/neighborhood-H/0-DAY/blob/main/Toto-link/X5000R/SetDiagnosisCfg/report.md(cve@mitre.org)

https://www.notion.so/TOTOLINK-X5000R-SetDiagnosisCfg-2d170566ca7f8098a0bcee9f2a15d40d?source=copy_link(cve@mitre.org)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.