CVE-2025-70327

critical · 9.8

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.

9.8

CVSS

0.7%

EPSS (exploit prob.)

51st

EPSS percentile

2026-02-23

Published

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

Weaknesses

CWE-88CWE-400

Affected products

Vendor	Product	Affected versions
totolink	x5000r_firmware	9.1.0cu.2415_b20250515
totolink	x5000r	all versions

Check a specific version with /api/v1/cve/match.

References

https://github.com/neighborhood-H/0-DAY/blob/main/Toto-link/X5000R/SetDiagnosisCfg/report.md
https://www.notion.so/TOTOLINK-X5000R-SetDiagnosisCfg-2d170566ca7f8098a0bcee9f2a15d40d?source=copy_link

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-70327